402412402 has 40 divisors (see below), whose sum is σ = 719565696. Its totient is φ = 168698376.

The previous prime is 402412349. The next prime is 402412421. The reversal of 402412402 is 204214204.

It is a self number, because there is not a number n which added to its sum of digits gives 402412402.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 224803 + ... + 226585.

Almost surely, 2^402412402 is an apocalyptic number.

402412402 is a deficient number, since it is larger than the sum of its proper divisors (317153294).

402412402 is an equidigital number, since it uses as much as digits as its factorization.

402412402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 402412402 is about 20060.2193906248. The cubic root of 402412402 is about 738.2845593944.

Adding to 402412402 its reverse (204214204), we get a palindrome (606626606).

The spelling of 402412402 in words is "four hundred two million, four hundred twelve thousand, four hundred two".