400915146 has 16 divisors (see below), whose sum is σ = 804132000. Its totient is φ = 133254768.

The previous prime is 400915129. The next prime is 400915153. The reversal of 400915146 is 641519004.

It is a happy 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, 93636 + ... + 97823.

It is an arithmetic number, because the mean of its divisors is an integer number (50258250).

Almost surely, 2^400915146 is an apocalyptic number.

400915146 is an abundant number, since it is smaller than the sum of its proper divisors (403216854).

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

400915146 is a wasteful number, since it uses less digits than its factorization.

400915146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191813.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 400915146 is about 20022.8655791323. The cubic root of 400915146 is about 737.3677761997.

The spelling of 400915146 in words is "four hundred million, nine hundred fifteen thousand, one hundred forty-six".