1940403872 has 48 divisors (see below), whose sum is σ = 4226209344. Its totient is φ = 869568000.

The previous prime is 1940403869. The next prime is 1940403887. The reversal of 1940403872 is 2783040491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13829 + ... + 63812.

It is an arithmetic number, because the mean of its divisors is an integer number (88046028).

Almost surely, 2^1940403872 is an apocalyptic number.

It is an amenable number.

1940403872 is an abundant number, since it is smaller than the sum of its proper divisors (2285805472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1940403872 is a wasteful number, since it uses less digits than its factorization.

1940403872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77733 (or 77725 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1940403872 is about 44050.0155732095. The cubic root of 1940403872 is about 1247.2802460024.

The spelling of 1940403872 in words is "one billion, nine hundred forty million, four hundred three thousand, eight hundred seventy-two".