402606624 has 48 divisors (see below), whose sum is σ = 1207821888. Its totient is φ = 115030272.

The previous prime is 402606587. The next prime is 402606629. The reversal of 402606624 is 426606204.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 402606591 and 402606600.

It is not an unprimeable number, because it can be changed into a prime (402606629) 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, 298887 + ... + 300230.

It is an arithmetic number, because the mean of its divisors is an integer number (25162956).

Almost surely, 2^402606624 is an apocalyptic number.

It is an amenable number.

402606624 is an abundant number, since it is smaller than the sum of its proper divisors (805215264).

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

402606624 is a wasteful number, since it uses less digits than its factorization.

402606624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599137 (or 599129 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 402606624 is about 20065.0597806236. The cubic root of 402606624 is about 738.4033165369.

The spelling of 402606624 in words is "four hundred two million, six hundred six thousand, six hundred twenty-four".