72385940 has 24 divisors (see below), whose sum is σ = 165830112. Its totient is φ = 26322080.

The previous prime is 72385921. The next prime is 72385967. The reversal of 72385940 is 4958327.

It is a junction number, because it is equal to n+sod(n) for n = 72385894 and 72385903.

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, 164294 + ... + 164733.

It is an arithmetic number, because the mean of its divisors is an integer number (6909588).

Almost surely, 2^72385940 is an apocalyptic number.

It is an amenable number.

72385940 is an abundant number, since it is smaller than the sum of its proper divisors (93444172).

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

72385940 is a wasteful number, since it uses less digits than its factorization.

72385940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329047 (or 329045 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 72385940 is about 8507.9927127378. The cubic root of 72385940 is about 416.7587622205.

The spelling of 72385940 in words is "seventy-two million, three hundred eighty-five thousand, nine hundred forty".