400132623808 has 56 divisors (see below), whose sum is σ = 832295383920. Its totient is φ = 190647367680.

The previous prime is 400132623733. The next prime is 400132623809. The reversal of 400132623808 is 808326231004.

It is a super-2 number, since 2×400132623808² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400132623809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660303 + ... + 1885966.

It is an arithmetic number, because the mean of its divisors is an integer number (14862417570).

Almost surely, 2^400132623808 is an apocalyptic number.

It is an amenable number.

400132623808 is an abundant number, since it is smaller than the sum of its proper divisors (432162760112).

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

400132623808 is a wasteful number, since it uses less digits than its factorization.

400132623808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546365 (or 3546355 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 400132623808 in words is "four hundred billion, one hundred thirty-two million, six hundred twenty-three thousand, eight hundred eight".