331473312 has 36 divisors (see below), whose sum is σ = 942628050. Its totient is φ = 110491008.

The previous prime is 331473301. The next prime is 331473319. The reversal of 331473312 is 213374133.

It can be written as a sum of positive squares in only one way, i.e., 273042576 + 58430736 = 16524^2 + 7644^2 .

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

It is not an unprimeable number, because it can be changed into a prime (331473319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575187 + ... + 575762.

Almost surely, 2^331473312 is an apocalyptic number.

331473312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331473312 is an abundant number, since it is smaller than the sum of its proper divisors (611154738).

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

331473312 is a wasteful number, since it uses less digits than its factorization.

331473312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150965 (or 1150954 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 331473312 is about 18206.4085420491. The cubic root of 331473312 is about 692.0692013168.

The spelling of 331473312 in words is "three hundred thirty-one million, four hundred seventy-three thousand, three hundred twelve".