400416492 has 24 divisors (see below), whose sum is σ = 1067777536. Its totient is φ = 114404688.

The previous prime is 400416449. The next prime is 400416493. The reversal of 400416492 is 294614004.

It is not an unprimeable number, because it can be changed into a prime (400416493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2383348 + ... + 2383515.

Almost surely, 2^400416492 is an apocalyptic number.

400416492 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

400416492 is an abundant number, since it is smaller than the sum of its proper divisors (667361044).

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

400416492 is a wasteful number, since it uses less digits than its factorization.

400416492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766877 (or 4766875 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 400416492 is about 20010.4095910104. The cubic root of 400416492 is about 737.0619392966.

The spelling of 400416492 in words is "four hundred million, four hundred sixteen thousand, four hundred ninety-two".