72236620 has 12 divisors (see below), whose sum is σ = 151696944. Its totient is φ = 28894640.

The previous prime is 72236611. The next prime is 72236683. The reversal of 72236620 is 2663227.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1805896 + ... + 1805935.

It is an arithmetic number, because the mean of its divisors is an integer number (12641412).

Almost surely, 2^72236620 is an apocalyptic number.

It is an amenable number.

72236620 is an abundant number, since it is smaller than the sum of its proper divisors (79460324).

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

72236620 is a wasteful number, since it uses less digits than its factorization.

72236620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611840 (or 3611838 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 72236620 is about 8499.2129047342. The cubic root of 72236620 is about 416.4719972411.

Adding to 72236620 its reverse (2663227), we get a palindrome (74899847).

The spelling of 72236620 in words is "seventy-two million, two hundred thirty-six thousand, six hundred twenty".