331030386 has 12 divisors (see below), whose sum is σ = 717232542. Its totient is φ = 110343456.

The previous prime is 331030367. The next prime is 331030393. The reversal of 331030386 is 683030133.

It can be written as a sum of positive squares in only one way, i.e., 214066161 + 116964225 = 14631^2 + 10815^2 .

It is a super-2 number, since 2×331030386² = 219162232910617992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9195271 + ... + 9195306.

Almost surely, 2^331030386 is an apocalyptic number.

331030386 is an abundant number, since it is smaller than the sum of its proper divisors (386202156).

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

331030386 is a wasteful number, since it uses less digits than its factorization.

331030386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18390585 (or 18390582 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 331030386 is about 18194.2404623002. The cubic root of 331030386 is about 691.7608083856.

The spelling of 331030386 in words is "three hundred thirty-one million, thirty thousand, three hundred eighty-six".