72338918 has 8 divisors (see below), whose sum is σ = 110036880. Its totient is φ = 35659960.

The previous prime is 72338891. The next prime is 72338921. The reversal of 72338918 is 81983327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254573 + ... + 254856.

It is an arithmetic number, because the mean of its divisors is an integer number (13754610).

Almost surely, 2^72338918 is an apocalyptic number.

72338918 is a deficient number, since it is larger than the sum of its proper divisors (37697962).

72338918 is a wasteful number, since it uses less digits than its factorization.

72338918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509502.

The product of its digits is 72576, while the sum is 41.

The square root of 72338918 is about 8505.2288622941. The cubic root of 72338918 is about 416.6685003297.

The spelling of 72338918 in words is "seventy-two million, three hundred thirty-eight thousand, nine hundred eighteen".