192973940 has 24 divisors (see below), whose sum is σ = 406699272. Its totient is φ = 76912640.

The previous prime is 192973939. The next prime is 192973961. The reversal of 192973940 is 49379291.

It can be written as a sum of positive squares in 4 ways, for example, as 26770276 + 166203664 = 5174^2 + 12892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 192973891 and 192973900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11549 + ... + 22788.

It is an arithmetic number, because the mean of its divisors is an integer number (16945803).

Almost surely, 2^192973940 is an apocalyptic number.

192973940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

192973940 is an abundant number, since it is smaller than the sum of its proper divisors (213725332).

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

192973940 is a wasteful number, since it uses less digits than its factorization.

192973940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34627 (or 34625 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 192973940 is about 13891.5060378636. The cubic root of 192973940 is about 577.8736448694.

The spelling of 192973940 in words is "one hundred ninety-two million, nine hundred seventy-three thousand, nine hundred forty".