331508052 has 30 divisors (see below), whose sum is σ = 866628378. Its totient is φ = 110502576.

The previous prime is 331508033. The next prime is 331508053. The reversal of 331508052 is 250805133.

It can be written as a sum of positive squares in only one way, i.e., 309267396 + 22240656 = 17586^2 + 4716^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331508053) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 511263 + ... + 511910.

Almost surely, 2^331508052 is an apocalyptic number.

It is an amenable number.

331508052 is an abundant number, since it is smaller than the sum of its proper divisors (535120326).

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

331508052 is a wasteful number, since it uses less digits than its factorization.

331508052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023189 (or 1023178 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 331508052 is about 18207.3625767160. The cubic root of 331508052 is about 692.0933778677.

The spelling of 331508052 in words is "three hundred thirty-one million, five hundred eight thousand, fifty-two".