1940991504 has 40 divisors (see below), whose sum is σ = 5019381120. Its totient is φ = 646332288.

The previous prime is 1940991427. The next prime is 1940991523. The reversal of 1940991504 is 4051990491.

It is a happy number.

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, 27577 + ... + 68135.

It is an arithmetic number, because the mean of its divisors is an integer number (125484528).

Almost surely, 2^1940991504 is an apocalyptic number.

It is an amenable number.

1940991504 is an abundant number, since it is smaller than the sum of its proper divisors (3078389616).

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

1940991504 is a wasteful number, since it uses less digits than its factorization.

1940991504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41567 (or 41561 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 1940991504 is about 44056.6851226917. The cubic root of 1940991504 is about 1247.4061420973.

The spelling of 1940991504 in words is "one billion, nine hundred forty million, nine hundred ninety-one thousand, five hundred four".