3501420 has 72 divisors (see below), whose sum is σ = 10718064. Its totient is φ = 849024.

The previous prime is 3501413. The next prime is 3501427. The reversal of 3501420 is 241053.

It is an interprime number because it is at equal distance from previous prime (3501413) and next prime (3501427).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3501420.

It is not an unprimeable number, because it can be changed into a prime (3501427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52227 + ... + 52293.

It is an arithmetic number, because the mean of its divisors is an integer number (148862).

Almost surely, 2^3501420 is an apocalyptic number.

3501420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3501420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5359032).

3501420 is an abundant number, since it is smaller than the sum of its proper divisors (7216644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3501420 is a wasteful number, since it uses less digits than its factorization.

3501420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 3501420 is about 1871.2081658650. The cubic root of 3501420 is about 151.8499789430.

Adding to 3501420 its reverse (241053), we get a palindrome (3742473).

It can be divided in two parts, 350 and 1420, that added together give a triangular number (1770 = T₅₉).

The spelling of 3501420 in words is "three million, five hundred one thousand, four hundred twenty".