396229800402 has 18 divisors (see below), whose sum is σ = 858503687223. Its totient is φ = 132075709932.

The previous prime is 396229800397. The next prime is 396229800479. The reversal of 396229800402 is 204008922693.

It can be written as a sum of positive squares in only one way, i.e., 198114900201 + 198114900201 = 445101^2 + 445101^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=445101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2596423 + ... + 2744789.

Almost surely, 2^396229800402 is an apocalyptic number.

396229800402 is an abundant number, since it is smaller than the sum of its proper divisors (462273886821).

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

396229800402 is an frugal number, since it uses more digits than its factorization.

396229800402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296742 (or 148372 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 396229800402 in words is "three hundred ninety-six billion, two hundred twenty-nine million, eight hundred thousand, four hundred two".