400107408 has 20 divisors (see below), whose sum is σ = 1033610928. Its totient is φ = 133369120.

The previous prime is 400107401. The next prime is 400107413. The reversal of 400107408 is 804701004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (400107401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4167738 + ... + 4167833.

Almost surely, 2^400107408 is an apocalyptic number.

400107408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

400107408 is an abundant number, since it is smaller than the sum of its proper divisors (633503520).

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

400107408 is a wasteful number, since it uses less digits than its factorization.

400107408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8335582 (or 8335576 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 400107408 is about 20002.6850197667. The cubic root of 400107408 is about 736.8722429019.

The spelling of 400107408 in words is "four hundred million, one hundred seven thousand, four hundred eight".