402604 has 12 divisors (see below), whose sum is σ = 709128. Its totient is φ = 200000.

The previous prime is 402601. The next prime is 402613. The reversal of 402604 is 406204.

402604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (402601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (59094).

2⁴⁰²⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

402604 is a deficient number, since it is larger than the sum of its proper divisors (306524).

402604 is a wasteful number, since it uses less digits than its factorization.

402604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 402604 is about 634.5108352109. The cubic root of 402604 is about 73.8401712345.

Adding to 402604 its reverse (406204), we get a palindrome (808808).

Subtracting 402604 from its reverse (406204), we obtain a square (3600 = 60²).

The spelling of 402604 in words is "four hundred two thousand, six hundred four".