331269380 has 24 divisors (see below), whose sum is σ = 749179032. Its totient is φ = 122314752.

The previous prime is 331269371. The next prime is 331269413. The reversal of 331269380 is 83962133.

It can be written as a sum of positive squares in 4 ways, for example, as 39337984 + 291931396 = 6272^2 + 17086^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 331269380.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636797 + ... + 637316.

It is an arithmetic number, because the mean of its divisors is an integer number (31215793).

Almost surely, 2^331269380 is an apocalyptic number.

It is an amenable number.

331269380 is an abundant number, since it is smaller than the sum of its proper divisors (417909652).

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

331269380 is a wasteful number, since it uses less digits than its factorization.

331269380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274135 (or 1274133 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 331269380 is about 18200.8071249601. The cubic root of 331269380 is about 691.9272451827.

The spelling of 331269380 in words is "three hundred thirty-one million, two hundred sixty-nine thousand, three hundred eighty".