72305022 has 16 divisors (see below), whose sum is σ = 144758160. Its totient is φ = 24076992.

The previous prime is 72305011. The next prime is 72305027. The reversal of 72305022 is 22050327.

It is a self number, because there is not a number n which added to its sum of digits gives 72305022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72305027) 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, 778 + ... + 12050.

It is an arithmetic number, because the mean of its divisors is an integer number (9047385).

Almost surely, 2^72305022 is an apocalyptic number.

72305022 is an abundant number, since it is smaller than the sum of its proper divisors (72453138).

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

72305022 is a wasteful number, since it uses less digits than its factorization.

72305022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12347.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 72305022 is about 8503.2359722637. The cubic root of 72305022 is about 416.6034104150.

Adding to 72305022 its reverse (22050327), we get a palindrome (94355349).

The spelling of 72305022 in words is "seventy-two million, three hundred five thousand, twenty-two".