1930242986 has 24 divisors (see below), whose sum is σ = 3369615876. Its totient is φ = 826869120.

The previous prime is 1930242983. The next prime is 1930243013. The reversal of 1930242986 is 6892420391.

It can be written as a sum of positive squares in 2 ways, for example, as 1874457025 + 55785961 = 43295^2 + 7469^2 .

It is not an unprimeable number, because it can be changed into a prime (1930242983) 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, 365960 + ... + 371196.

Almost surely, 2^1930242986 is an apocalyptic number.

1930242986 is a deficient number, since it is larger than the sum of its proper divisors (1439372890).

1930242986 is a wasteful number, since it uses less digits than its factorization.

1930242986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9014 (or 9007 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1930242986 is about 43934.5306791822. The cubic root of 1930242986 is about 1245.0993154215.

The spelling of 1930242986 in words is "one billion, nine hundred thirty million, two hundred forty-two thousand, nine hundred eighty-six".