72384990 has 16 divisors (see below), whose sum is σ = 173724048. Its totient is φ = 19302656.

The previous prime is 72384973. The next prime is 72385009. The reversal of 72384990 is 9948327.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206387 + ... + 1206446.

It is an arithmetic number, because the mean of its divisors is an integer number (10857753).

Almost surely, 2^72384990 is an apocalyptic number.

72384990 is an abundant number, since it is smaller than the sum of its proper divisors (101339058).

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

72384990 is a wasteful number, since it uses less digits than its factorization.

72384990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412843.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 72384990 is about 8507.9368826996. The cubic root of 72384990 is about 416.7569390185.

The spelling of 72384990 in words is "seventy-two million, three hundred eighty-four thousand, nine hundred ninety".