72361012 has 24 divisors (see below), whose sum is σ = 130233600. Its totient is φ = 35162400.

The previous prime is 72361007. The next prime is 72361043. The reversal of 72361012 is 21016327.

It is a super-2 number, since 2×72361012² = 10472232115328288, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27114 + ... + 29662.

It is an arithmetic number, because the mean of its divisors is an integer number (5426400).

Almost surely, 2^72361012 is an apocalyptic number.

It is an amenable number.

72361012 is a deficient number, since it is larger than the sum of its proper divisors (57872588).

72361012 is a wasteful number, since it uses less digits than its factorization.

72361012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 72361012 is about 8506.5276111937. The cubic root of 72361012 is about 416.7109161184.

Adding to 72361012 its reverse (21016327), we get a palindrome (93377339).

The spelling of 72361012 in words is "seventy-two million, three hundred sixty-one thousand, twelve".