331884036 has 36 divisors (see below), whose sum is σ = 915196464. Its totient is φ = 100570800.

The previous prime is 331884029. The next prime is 331884037. The reversal of 331884036 is 630488133.

It is a happy number.

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

It is a super-2 number, since 2×331884036² = 220294026703298592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (331884037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418650 + ... + 419441.

It is an arithmetic number, because the mean of its divisors is an integer number (25422124).

Almost surely, 2^331884036 is an apocalyptic number.

331884036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

331884036 is an abundant number, since it is smaller than the sum of its proper divisors (583312428).

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

331884036 is a wasteful number, since it uses less digits than its factorization.

331884036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838112 (or 838107 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 331884036 is about 18217.6847047038. The cubic root of 331884036 is about 692.3549277970.

The spelling of 331884036 in words is "three hundred thirty-one million, eight hundred eighty-four thousand, thirty-six".