72364940 has 12 divisors (see below), whose sum is σ = 151966416. Its totient is φ = 28945968.

The previous prime is 72364927. The next prime is 72364949. The reversal of 72364940 is 4946327.

It is a self number, because there is not a number n which added to its sum of digits gives 72364940.

It is not an unprimeable number, because it can be changed into a prime (72364949) 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, 1809104 + ... + 1809143.

It is an arithmetic number, because the mean of its divisors is an integer number (12663868).

Almost surely, 2^72364940 is an apocalyptic number.

It is an amenable number.

72364940 is an abundant number, since it is smaller than the sum of its proper divisors (79601476).

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

72364940 is a wasteful number, since it uses less digits than its factorization.

72364940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618256 (or 3618254 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 72364940 is about 8506.7584895776. The cubic root of 72364940 is about 416.7184561404.

The spelling of 72364940 in words is "seventy-two million, three hundred sixty-four thousand, nine hundred forty".