1940313879 has 64 divisors (see below), whose sum is σ = 3446784000. Its totient is φ = 1054744416.

The previous prime is 1940313871. The next prime is 1940313923. The reversal of 1940313879 is 9783130491.

It is not a de Polignac number, because 1940313879 - 2³ = 1940313871 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940313871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 863932 + ... + 866174.

It is an arithmetic number, because the mean of its divisors is an integer number (53856000).

Almost surely, 2^1940313879 is an apocalyptic number.

1940313879 is a deficient number, since it is larger than the sum of its proper divisors (1506470121).

1940313879 is a wasteful number, since it uses less digits than its factorization.

1940313879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481 (or 2475 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1940313879 is about 44048.9940747800. The cubic root of 1940313879 is about 1247.2609633799.

The spelling of 1940313879 in words is "one billion, nine hundred forty million, three hundred thirteen thousand, eight hundred seventy-nine".