72373122 has 16 divisors (see below), whose sum is σ = 160829280. Its totient is φ = 24124356.

The previous prime is 72373099. The next prime is 72373123. The reversal of 72373122 is 22137327.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (72373123) 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, 670068 + ... + 670175.

It is an arithmetic number, because the mean of its divisors is an integer number (10051830).

Almost surely, 2^72373122 is an apocalyptic number.

72373122 is an abundant number, since it is smaller than the sum of its proper divisors (88456158).

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

72373122 is a wasteful number, since it uses less digits than its factorization.

72373122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340254 (or 1340248 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 72373122 is about 8507.2393877215. The cubic root of 72373122 is about 416.7341610840.

The spelling of 72373122 in words is "seventy-two million, three hundred seventy-three thousand, one hundred twenty-two".