72398622 has 16 divisors (see below), whose sum is σ = 144898560. Its totient is φ = 24115992.

The previous prime is 72398621. The next prime is 72398657. The reversal of 72398622 is 22689327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72398621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7629 + ... + 14247.

It is an arithmetic number, because the mean of its divisors is an integer number (9056160).

Almost surely, 2^72398622 is an apocalyptic number.

72398622 is an abundant number, since it is smaller than the sum of its proper divisors (72499938).

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

72398622 is a wasteful number, since it uses less digits than its factorization.

72398622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447.

The product of its digits is 72576, while the sum is 39.

The square root of 72398622 is about 8508.7379792775. The cubic root of 72398622 is about 416.7830994789.

The spelling of 72398622 in words is "seventy-two million, three hundred ninety-eight thousand, six hundred twenty-two".