2402904 has 32 divisors (see below), whose sum is σ = 6865920. Its totient is φ = 686496.

The previous prime is 2402867. The next prime is 2402909. The reversal of 2402904 is 4092042.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6984 + ... + 7319.

It is an arithmetic number, because the mean of its divisors is an integer number (214560).

2^2402904 is an apocalyptic number.

2402904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2402904 is an abundant number, since it is smaller than the sum of its proper divisors (4463016).

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

2402904 is a wasteful number, since it uses less digits than its factorization.

2402904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14319 (or 14315 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2402904 is about 1550.1303171024. The cubic root of 2402904 is about 133.9405691753.

Adding to 2402904 its reverse (4092042), we get a palindrome (6494946).

The spelling of 2402904 in words is "two million, four hundred two thousand, nine hundred four".