192791140 has 24 divisors (see below), whose sum is σ = 405897912. Its totient is φ = 76919040.

The previous prime is 192791117. The next prime is 192791147. The reversal of 192791140 is 41197291.

It can be written as a sum of positive squares in 4 ways, for example, as 79709184 + 113081956 = 8928^2 + 10634^2 .

It is a junction number, because it is equal to n+sod(n) for n = 192791096 and 192791105.

It is not an unprimeable number, because it can be changed into a prime (192791147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4201 + ... + 20080.

It is an arithmetic number, because the mean of its divisors is an integer number (16912413).

Almost surely, 2^192791140 is an apocalyptic number.

192791140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

192791140 is an abundant number, since it is smaller than the sum of its proper divisors (213106772).

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

192791140 is a wasteful number, since it uses less digits than its factorization.

192791140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24687 (or 24685 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 192791140 is about 13884.9249187743. The cubic root of 192791140 is about 577.6911181939.

The spelling of 192791140 in words is "one hundred ninety-two million, seven hundred ninety-one thousand, one hundred forty".