2403420 has 48 divisors (see below), whose sum is σ = 6900768. Its totient is φ = 624640.

The previous prime is 2403419. The next prime is 2403451. The reversal of 2403420 is 243042.

It is a happy number.

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 2403420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1972 + ... + 2948.

It is an arithmetic number, because the mean of its divisors is an integer number (143766).

2^2403420 is an apocalyptic number.

2403420 is a gapful number since it is divisible by the number (20) 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 2403420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3450384).

2403420 is an abundant number, since it is smaller than the sum of its proper divisors (4497348).

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

2403420 is a wasteful number, since it uses less digits than its factorization.

2403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2403420 is about 1550.2967457877. The cubic root of 2403420 is about 133.9501559624.

Adding to 2403420 its reverse (243042), we get a palindrome (2646462).

The spelling of 2403420 in words is "two million, four hundred three thousand, four hundred twenty".