72384772 has 24 divisors (see below), whose sum is σ = 133168896. Its totient is φ = 34360128.

The previous prime is 72384761. The next prime is 72384779. The reversal of 72384772 is 27748327.

It is not an unprimeable number, because it can be changed into a prime (72384779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9733 + ... + 15475.

It is an arithmetic number, because the mean of its divisors is an integer number (5548704).

Almost surely, 2^72384772 is an apocalyptic number.

It is an amenable number.

72384772 is a deficient number, since it is larger than the sum of its proper divisors (60784124).

72384772 is a wasteful number, since it uses less digits than its factorization.

72384772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907 (or 5905 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 72384772 is about 8507.9240711233. The cubic root of 72384772 is about 416.7565206394.

The spelling of 72384772 in words is "seventy-two million, three hundred eighty-four thousand, seven hundred seventy-two".