396507442888 has 8 divisors (see below), whose sum is σ = 743451455430. Its totient is φ = 198253721440.

The previous prime is 396507442883. The next prime is 396507442921. The reversal of 396507442888 is 888244705693.

It can be written as a sum of positive squares in only one way, i.e., 300718430884 + 95789012004 = 548378^2 + 309498^2 .

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

It is not an unprimeable number, because it can be changed into a prime (396507442883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24781715173 + ... + 24781715188.

Almost surely, 2^396507442888 is an apocalyptic number.

It is an amenable number.

396507442888 is a deficient number, since it is larger than the sum of its proper divisors (346944012542).

396507442888 is a wasteful number, since it uses less digits than its factorization.

396507442888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49563430367 (or 49563430363 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 396507442888 in words is "three hundred ninety-six billion, five hundred seven million, four hundred forty-two thousand, eight hundred eighty-eight".