400431005036 has 12 divisors (see below), whose sum is σ = 700758864960. Its totient is φ = 200214186480.

The previous prime is 400431004997. The next prime is 400431005053. The reversal of 400431005036 is 630500134004.

It is a super-2 number, since 2×400431005036² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400431004996 and 400431005014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745541 + ... + 1164771.

It is an arithmetic number, because the mean of its divisors is an integer number (58396572080).

Almost surely, 2^400431005036 is an apocalyptic number.

It is an amenable number.

400431005036 is a deficient number, since it is larger than the sum of its proper divisors (300327859924).

400431005036 is a wasteful number, since it uses less digits than its factorization.

400431005036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658024 (or 658022 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The spelling of 400431005036 in words is "four hundred billion, four hundred thirty-one million, five thousand, thirty-six".