400910412 has 48 divisors (see below), whose sum is σ = 1125367040. Its totient is φ = 108516672.

The previous prime is 400910359. The next prime is 400910443. The reversal of 400910412 is 214019004.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 124003 + ... + 127194.

Almost surely, 2^400910412 is an apocalyptic number.

400910412 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

400910412 is an abundant number, since it is smaller than the sum of its proper divisors (724456628).

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

400910412 is a wasteful number, since it uses less digits than its factorization.

400910412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251230 (or 251228 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 400910412 is about 20022.7473639358. The cubic root of 400910412 is about 737.3648739124.

Adding to 400910412 its reverse (214019004), we get a palindrome (614929416).

The spelling of 400910412 in words is "four hundred million, nine hundred ten thousand, four hundred twelve".