402620012 has 24 divisors (see below), whose sum is σ = 730069200. Its totient is φ = 194158016.

The previous prime is 402620003. The next prime is 402620047. The reversal of 402620012 is 210026204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3587 + ... + 28602.

It is an arithmetic number, because the mean of its divisors is an integer number (30419550).

Almost surely, 2^402620012 is an apocalyptic number.

It is an amenable number.

402620012 is a deficient number, since it is larger than the sum of its proper divisors (327449188).

402620012 is a wasteful number, since it uses less digits than its factorization.

402620012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32305 (or 32303 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 402620012 is about 20065.3933926051. The cubic root of 402620012 is about 738.4115012292.

Adding to 402620012 its reverse (210026204), we get a palindrome (612646216).

The spelling of 402620012 in words is "four hundred two million, six hundred twenty thousand, twelve".