3549420 has 120 divisors (see below), whose sum is σ = 12765984. Its totient is φ = 808704.

The previous prime is 3549419. The next prime is 3549421. The reversal of 3549420 is 249453.

3549420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3549419) and next prime (3549421).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3549421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11184 + ... + 11496.

Almost surely, 2^3549420 is an apocalyptic number.

3549420 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 3549420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6382992).

3549420 is an abundant number, since it is smaller than the sum of its proper divisors (9216564).

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

3549420 is a wasteful number, since it uses less digits than its factorization.

3549420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3549420 is about 1883.9904458356. The cubic root of 3549420 is about 152.5407219030.

It can be divided in two parts, 3549 and 420, that added together give a square (3969 = 63²).

The spelling of 3549420 in words is "three million, five hundred forty-nine thousand, four hundred twenty".