400413880 has 16 divisors (see below), whose sum is σ = 900931320. Its totient is φ = 160165536.

The previous prime is 400413857. The next prime is 400413917. The reversal of 400413880 is 88314004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005134 + ... + 5005213.

Almost surely, 2^400413880 is an apocalyptic number.

400413880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400413880 is an abundant number, since it is smaller than the sum of its proper divisors (500517440).

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

400413880 is a wasteful number, since it uses less digits than its factorization.

400413880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010358 (or 10010354 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 400413880 is about 20010.3443248736. The cubic root of 400413880 is about 737.0603366237.

Adding to 400413880 its reverse (88314004), we get a palindrome (488727884).

The spelling of 400413880 in words is "four hundred million, four hundred thirteen thousand, eight hundred eighty".