401832972 has 36 divisors (see below), whose sum is σ = 1024743720. Its totient is φ = 132757632.

The previous prime is 401832971. The next prime is 401832989. The reversal of 401832972 is 279238104.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×401832972² = 322939474772705568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (401832971) 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 11 ways as a sum of consecutive naturals, for example, 45322 + ... + 53457.

Almost surely, 2^401832972 is an apocalyptic number.

It is an amenable number.

401832972 is an abundant number, since it is smaller than the sum of its proper divisors (622910748).

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

401832972 is a wasteful number, since it uses less digits than its factorization.

401832972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98902 (or 98897 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 401832972 is about 20045.7719232760. The cubic root of 401832972 is about 737.9300394165.

The spelling of 401832972 in words is "four hundred one million, eight hundred thirty-two thousand, nine hundred seventy-two".