192939380 has 12 divisors (see below), whose sum is σ = 405172740. Its totient is φ = 77175744.

The previous prime is 192939379. The next prime is 192939389. The reversal of 192939380 is 83939291.

It can be written as a sum of positive squares in 2 ways, for example, as 84529636 + 108409744 = 9194^2 + 10412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192939389) 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, 4823465 + ... + 4823504.

It is an arithmetic number, because the mean of its divisors is an integer number (33764395).

Almost surely, 2^192939380 is an apocalyptic number.

192939380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

192939380 is an abundant number, since it is smaller than the sum of its proper divisors (212233360).

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

192939380 is a wasteful number, since it uses less digits than its factorization.

192939380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646978 (or 9646976 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 192939380 is about 13890.2620565632. The cubic root of 192939380 is about 577.8391453829.

The spelling of 192939380 in words is "one hundred ninety-two million, nine hundred thirty-nine thousand, three hundred eighty".