72245108 has 12 divisors (see below), whose sum is σ = 136154340. Its totient is φ = 33343872.

The previous prime is 72245101. The next prime is 72245137. The reversal of 72245108 is 80154227.

It can be written as a sum of positive squares in 2 ways, for example, as 8596624 + 63648484 = 2932^2 + 7978^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72245101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694613 + ... + 694716.

It is an arithmetic number, because the mean of its divisors is an integer number (11346195).

Almost surely, 2^72245108 is an apocalyptic number.

It is an amenable number.

72245108 is a deficient number, since it is larger than the sum of its proper divisors (63909232).

72245108 is a wasteful number, since it uses less digits than its factorization.

72245108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389346 (or 1389344 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 72245108 is about 8499.7122304229. The cubic root of 72245108 is about 416.4883088010.

The spelling of 72245108 in words is "seventy-two million, two hundred forty-five thousand, one hundred eight".