1892057892 has 12 divisors (see below), whose sum is σ = 4414801776. Its totient is φ = 630685960.

The previous prime is 1892057887. The next prime is 1892057899. The reversal of 1892057892 is 2987502981.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1892057899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78835734 + ... + 78835757.

It is an arithmetic number, because the mean of its divisors is an integer number (367900148).

Almost surely, 2^1892057892 is an apocalyptic number.

1892057892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1892057892 is an abundant number, since it is smaller than the sum of its proper divisors (2522743884).

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

1892057892 is a wasteful number, since it uses less digits than its factorization.

1892057892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157671498 (or 157671496 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 1892057892 is about 43497.7918060216. The cubic root of 1892057892 is about 1236.8341658009.

The spelling of 1892057892 in words is "one billion, eight hundred ninety-two million, fifty-seven thousand, eight hundred ninety-two".