1940283931 has 2 divisors, whose sum is σ = 1940283932. Its totient is φ = 1940283930.

The previous prime is 1940283923. The next prime is 1940283949. The reversal of 1940283931 is 1393820491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1940283931 - 2³ = 1940283923 is a prime.

It is a super-2 number, since 2×1940283931² = 7529403465793625522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1940283131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970141965 + 970141966.

It is an arithmetic number, because the mean of its divisors is an integer number (970141966).

Almost surely, 2^1940283931 is an apocalyptic number.

1940283931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940283931 is an equidigital number, since it uses as much as digits as its factorization.

1940283931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1940283931 is about 44048.6541338098. The cubic root of 1940283931 is about 1247.2545463488.

The spelling of 1940283931 in words is "one billion, nine hundred forty million, two hundred eighty-three thousand, nine hundred thirty-one".