400144100 has 36 divisors (see below), whose sum is σ = 881287344. Its totient is φ = 157666080.

The previous prime is 400144099. The next prime is 400144153. The reversal of 400144100 is 1441004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23162 + ... + 36561.

It is an arithmetic number, because the mean of its divisors is an integer number (24480204).

Almost surely, 2^400144100 is an apocalyptic number.

It is an amenable number.

400144100 is an abundant number, since it is smaller than the sum of its proper divisors (481143244).

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

400144100 is a wasteful number, since it uses less digits than its factorization.

400144100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59804 (or 59797 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 400144100 is about 20003.6021756083. The cubic root of 400144100 is about 736.8947672619.

Adding to 400144100 its reverse (1441004), we get a palindrome (401585104).

The spelling of 400144100 in words is "four hundred million, one hundred forty-four thousand, one hundred".