1940864512 has 80 divisors (see below), whose sum is σ = 3997065600. Its totient is φ = 940972032.

The previous prime is 1940864479. The next prime is 1940864533. The reversal of 1940864512 is 2154680491.

It is a congruent 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, 4380963 + ... + 4381405.

It is an arithmetic number, because the mean of its divisors is an integer number (49963320).

Almost surely, 2^1940864512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940864512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1998532800).

1940864512 is an abundant number, since it is smaller than the sum of its proper divisors (2056201088).

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

1940864512 is an equidigital number, since it uses as much as digits as its factorization.

1940864512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1940864512 is about 44055.2438649476. The cubic root of 1940864512 is about 1247.3789370915.

The spelling of 1940864512 in words is "one billion, nine hundred forty million, eight hundred sixty-four thousand, five hundred twelve".