331950636 has 72 divisors (see below), whose sum is σ = 921407760. Its totient is φ = 104136192.

The previous prime is 331950601. The next prime is 331950649. The reversal of 331950636 is 636059133.

331950636 is a `hidden beast` number, since 3 + 3 + 19 + 5 + 0 + 636 = 666.

It is a super-2 number, since 2×331950636² = 220382449481608992, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 331950636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6480 + ... + 26568.

It is an arithmetic number, because the mean of its divisors is an integer number (12797330).

Almost surely, 2^331950636 is an apocalyptic number.

331950636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331950636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460703880).

331950636 is an abundant number, since it is smaller than the sum of its proper divisors (589457124).

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

331950636 is a wasteful number, since it uses less digits than its factorization.

331950636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20125 (or 20111 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 331950636 is about 18219.5125071995. The cubic root of 331950636 is about 692.4012368982.

The spelling of 331950636 in words is "three hundred thirty-one million, nine hundred fifty thousand, six hundred thirty-six".