402664712 has 8 divisors (see below), whose sum is σ = 754996350. Its totient is φ = 201332352.

The previous prime is 402664709. The next prime is 402664729. The reversal of 402664712 is 217466204.

It can be written as a sum of positive squares in only one way, i.e., 263283076 + 139381636 = 16226^2 + 11806^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25166537 + ... + 25166552.

Almost surely, 2^402664712 is an apocalyptic number.

It is an amenable number.

402664712 is a deficient number, since it is larger than the sum of its proper divisors (352331638).

402664712 is a wasteful number, since it uses less digits than its factorization.

402664712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50333095 (or 50333091 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 402664712 is about 20066.5072197431. The cubic root of 402664712 is about 738.4388270548.

The spelling of 402664712 in words is "four hundred two million, six hundred sixty-four thousand, seven hundred twelve".