400142415504 has 40 divisors (see below), whose sum is σ = 1113216721792. Its totient is φ = 123120743040.

The previous prime is 400142415481. The next prime is 400142415539. The reversal of 400142415504 is 405514241004.

It is a super-2 number, since 2×400142415504² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320626312 + ... + 320627559.

Almost surely, 2^400142415504 is an apocalyptic number.

It is an amenable number.

400142415504 is an abundant number, since it is smaller than the sum of its proper divisors (713074306288).

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

400142415504 is a wasteful number, since it uses less digits than its factorization.

400142415504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641253895 (or 641253889 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 400142415504 its reverse (405514241004), we get a palindrome (805656656508).

The spelling of 400142415504 in words is "four hundred billion, one hundred forty-two million, four hundred fifteen thousand, five hundred four".