400495943016 has 48 divisors (see below), whose sum is σ = 1168113169860. Its totient is φ = 123229520640.

The previous prime is 400495942997. The next prime is 400495943051. The reversal of 400495943016 is 610349594004.

400495943016 is a `hidden beast` number, since 4 + 0 + 0 + 49 + 594 + 3 + 0 + 16 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 385380224100 + 15115718916 = 620790^2 + 122946^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213939205 + ... + 213941076.

Almost surely, 2^400495943016 is an apocalyptic number.

It is an amenable number.

400495943016 is an abundant number, since it is smaller than the sum of its proper divisors (767617226844).

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

400495943016 is a wasteful number, since it uses less digits than its factorization.

400495943016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427880306 (or 427880299 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 400495943016 in words is "four hundred billion, four hundred ninety-five million, nine hundred forty-three thousand, sixteen".