1940531694 has 32 divisors (see below), whose sum is σ = 4017323520. Its totient is φ = 624160992.

The previous prime is 1940531683. The next prime is 1940531701. The reversal of 1940531694 is 4961350491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500407 + ... + 504269.

It is an arithmetic number, because the mean of its divisors is an integer number (125541360).

Almost surely, 2^1940531694 is an apocalyptic number.

1940531694 is an abundant number, since it is smaller than the sum of its proper divisors (2076791826).

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

1940531694 is a wasteful number, since it uses less digits than its factorization.

1940531694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1940531694 is about 44051.4664228105. The cubic root of 1940531694 is about 1247.3076331454.

The spelling of 1940531694 in words is "one billion, nine hundred forty million, five hundred thirty-one thousand, six hundred ninety-four".