1940391875 has 10 divisors (see below), whose sum is σ = 2424714468. Its totient is φ = 1552313000.

The previous prime is 1940391847. The next prime is 1940391877. The reversal of 1940391875 is 5781930491.

It is a de Polignac number, because none of the positive numbers 2^k-1940391875 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940391877) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1551689 + ... + 1552938.

Almost surely, 2^1940391875 is an apocalyptic number.

1940391875 is a deficient number, since it is larger than the sum of its proper divisors (484322593).

1940391875 is an frugal number, since it uses more digits than its factorization.

1940391875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104647 (or 3104632 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1940391875 is about 44049.8793982458. The cubic root of 1940391875 is about 1247.2776754634.

The spelling of 1940391875 in words is "one billion, nine hundred forty million, three hundred ninety-one thousand, eight hundred seventy-five".