72363388 has 6 divisors (see below), whose sum is σ = 126635936. Its totient is φ = 36181692.

The previous prime is 72363349. The next prime is 72363397. The reversal of 72363388 is 88336327.

It is a self number, because there is not a number n which added to its sum of digits gives 72363388.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9045420 + ... + 9045427.

Almost surely, 2^72363388 is an apocalyptic number.

It is an amenable number.

72363388 is a deficient number, since it is larger than the sum of its proper divisors (54272548).

72363388 is a wasteful number, since it uses less digits than its factorization.

72363388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18090851 (or 18090849 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 72363388 is about 8506.6672675026. The cubic root of 72363388 is about 416.7154770197.

The spelling of 72363388 in words is "seventy-two million, three hundred sixty-three thousand, three hundred eighty-eight".