72205602 has 32 divisors (see below), whose sum is σ = 172219392. Its totient is φ = 19732944.

The previous prime is 72205591. The next prime is 72205619. The reversal of 72205602 is 20650227.

It is an unprimeable number.

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, 36408 + ... + 38339.

It is an arithmetic number, because the mean of its divisors is an integer number (5381856).

Almost surely, 2^72205602 is an apocalyptic number.

72205602 is an abundant number, since it is smaller than the sum of its proper divisors (100013790).

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

72205602 is a wasteful number, since it uses less digits than its factorization.

72205602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74782.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 72205602 is about 8497.3879516002. The cubic root of 72205602 is about 416.4123784594.

Adding to 72205602 its reverse (20650227), we get a palindrome (92855829).

The spelling of 72205602 in words is "seventy-two million, two hundred five thousand, six hundred two".