72422392 has 32 divisors (see below), whose sum is σ = 158364000. Its totient is φ = 31036992.

The previous prime is 72422369. The next prime is 72422393. The reversal of 72422392 is 29322427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72422393) 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, 10453 + ... + 15940.

It is an arithmetic number, because the mean of its divisors is an integer number (4948875).

Almost surely, 2^72422392 is an apocalyptic number.

It is an amenable number.

72422392 is an abundant number, since it is smaller than the sum of its proper divisors (85941608).

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

72422392 is a wasteful number, since it uses less digits than its factorization.

72422392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26420 (or 26402 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 72422392 is about 8510.1346640344. The cubic root of 72422392 is about 416.8287073923.

The spelling of 72422392 in words is "seventy-two million, four hundred twenty-two thousand, three hundred ninety-two".