402974212 has 6 divisors (see below), whose sum is σ = 705204878. Its totient is φ = 201487104.

The previous prime is 402974197. The next prime is 402974219. The reversal of 402974212 is 212479204.

It can be written as a sum of positive squares in only one way, i.e., 401842116 + 1132096 = 20046^2 + 1064^2 .

It is not an unprimeable number, because it can be changed into a prime (402974219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50371773 + ... + 50371780.

Almost surely, 2^402974212 is an apocalyptic number.

It is an amenable number.

402974212 is a deficient number, since it is larger than the sum of its proper divisors (302230666).

402974212 is a wasteful number, since it uses less digits than its factorization.

402974212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100743557 (or 100743555 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 402974212 is about 20074.2175937196. The cubic root of 402974212 is about 738.6279739051.

The spelling of 402974212 in words is "four hundred two million, nine hundred seventy-four thousand, two hundred twelve".