400130004 has 24 divisors (see below), whose sum is σ = 935756640. Its totient is φ = 133073824.

The previous prime is 400129999. The next prime is 400130039. The reversal of 400130004 is 400031004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 32319 + ... + 42950.

It is an arithmetic number, because the mean of its divisors is an integer number (38989860).

Almost surely, 2^400130004 is an apocalyptic number.

It is an amenable number.

400130004 is an abundant number, since it is smaller than the sum of its proper divisors (535626636).

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

400130004 is a wasteful number, since it uses less digits than its factorization.

400130004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75719 (or 75717 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 400130004 is about 20003.2498359642. The cubic root of 400130004 is about 736.8861142204.

Adding to 400130004 its reverse (400031004), we get a palindrome (800161008).

The spelling of 400130004 in words is "four hundred million, one hundred thirty thousand, four".