72957192 has 192 divisors, whose sum is σ = 237740160. Its totient is φ = 18247680.

The previous prime is 72957191. The next prime is 72957221. The reversal of 72957192 is 29175927.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (72957191) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 752088 + ... + 752184.

It is an arithmetic number, because the mean of its divisors is an integer number (1238230).

Almost surely, 2^72957192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72957192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118870080).

72957192 is an abundant number, since it is smaller than the sum of its proper divisors (164782968).

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

72957192 is a wasteful number, since it uses less digits than its factorization.

72957192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 157 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 72957192 is about 8541.4982292336. The cubic root of 72957192 is about 417.8522099874.

The spelling of 72957192 in words is "seventy-two million, nine hundred fifty-seven thousand, one hundred ninety-two".