1992191310 has 24 divisors (see below), whose sum is σ = 5179697640. Its totient is φ = 531250992.

The previous prime is 1992191309. The next prime is 1992191321. The reversal of 1992191310 is 131912991.

It is a super-2 number, since 2×1992191310² = 7937652431279032200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11067640 + ... + 11067819.

It is an arithmetic number, because the mean of its divisors is an integer number (215820735).

Almost surely, 2^1992191310 is an apocalyptic number.

1992191310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992191310 is an abundant number, since it is smaller than the sum of its proper divisors (3187506330).

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

1992191310 is a wasteful number, since it uses less digits than its factorization.

1992191310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22135472 (or 22135469 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The square root of 1992191310 is about 44633.9703589094. The cubic root of 1992191310 is about 1258.2791890898.

The spelling of 1992191310 in words is "one billion, nine hundred ninety-two million, one hundred ninety-one thousand, three hundred ten".