72245635 has 16 divisors (see below), whose sum is σ = 108087552. Its totient is φ = 45036000.

The previous prime is 72245629. The next prime is 72245639. The reversal of 72245635 is 53654227.

It is not a de Polignac number, because 72245635 - 2¹³ = 72237443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72245635.

It is not an unprimeable number, because it can be changed into a prime (72245639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93441 + ... + 94210.

It is an arithmetic number, because the mean of its divisors is an integer number (6755472).

Almost surely, 2^72245635 is an apocalyptic number.

72245635 is a deficient number, since it is larger than the sum of its proper divisors (35841917).

72245635 is a wasteful number, since it uses less digits than its factorization.

72245635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187674.

The product of its digits is 50400, while the sum is 34.

The square root of 72245635 is about 8499.7432314159. The cubic root of 72245635 is about 416.4893215054.

The spelling of 72245635 in words is "seventy-two million, two hundred forty-five thousand, six hundred thirty-five".