400833372 has 12 divisors (see below), whose sum is σ = 935277896. Its totient is φ = 133611120.

The previous prime is 400833371. The next prime is 400833383. The reversal of 400833372 is 273338004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400833371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16701379 + ... + 16701402.

Almost surely, 2^400833372 is an apocalyptic number.

It is an amenable number.

400833372 is an abundant number, since it is smaller than the sum of its proper divisors (534444524).

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

400833372 is a wasteful number, since it uses less digits than its factorization.

400833372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33402788 (or 33402786 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 400833372 is about 20020.8234595883. The cubic root of 400833372 is about 737.3176395617.

The spelling of 400833372 in words is "four hundred million, eight hundred thirty-three thousand, three hundred seventy-two".