1930339731 has 12 divisors (see below), whose sum is σ = 2665601432. Its totient is φ = 1242515904.

The previous prime is 1930339729. The next prime is 1930339753. The reversal of 1930339731 is 1379330391.

1930339731 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1930339731 - 2¹ = 1930339729 is a prime.

It is a super-2 number, since 2×1930339731² = 7452422954154304722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1930339731.

It is not an unprimeable number, because it can be changed into a prime (1930339711) 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, 380026 + ... + 385071.

Almost surely, 2^1930339731 is an apocalyptic number.

1930339731 is a deficient number, since it is larger than the sum of its proper divisors (735261701).

1930339731 is an equidigital number, since it uses as much as digits as its factorization.

1930339731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765158 (or 765129 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 39.

The square root of 1930339731 is about 43935.6316786273. The cubic root of 1930339731 is about 1245.1201167959.

The spelling of 1930339731 in words is "one billion, nine hundred thirty million, three hundred thirty-nine thousand, seven hundred thirty-one".