401133912 has 64 divisors (see below), whose sum is σ = 1018068480. Its totient is φ = 131695872.

The previous prime is 401133881. The next prime is 401133917. The reversal of 401133912 is 219331104.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401133917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649828 + ... + 650444.

It is an arithmetic number, because the mean of its divisors is an integer number (15907320).

Almost surely, 2^401133912 is an apocalyptic number.

It is an amenable number.

401133912 is an abundant number, since it is smaller than the sum of its proper divisors (616934568).

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

401133912 is a wasteful number, since it uses less digits than its factorization.

401133912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 401133912 is about 20028.3277384808. The cubic root of 401133912 is about 737.5018707987.

The spelling of 401133912 in words is "four hundred one million, one hundred thirty-three thousand, nine hundred twelve".