400550130 has 32 divisors (see below), whose sum is σ = 1068134400. Its totient is φ = 106813296.

The previous prime is 400550119. The next prime is 400550201. The reversal of 400550130 is 31055004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741490 + ... + 742029.

It is an arithmetic number, because the mean of its divisors is an integer number (33379200).

Almost surely, 2^400550130 is an apocalyptic number.

400550130 is an abundant number, since it is smaller than the sum of its proper divisors (667584270).

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

400550130 is a wasteful number, since it uses less digits than its factorization.

400550130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483535 (or 1483529 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 400550130 is about 20013.7485244519. The cubic root of 400550130 is about 737.1439277007.

The spelling of 400550130 in words is "four hundred million, five hundred fifty thousand, one hundred thirty".