72014918 has 4 divisors (see below), whose sum is σ = 108022380. Its totient is φ = 36007458.

The previous prime is 72014911. The next prime is 72014939. The reversal of 72014918 is 81941027.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×72014918² = 10372296829093448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72014911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18003728 + ... + 18003731.

It is an arithmetic number, because the mean of its divisors is an integer number (27005595).

Almost surely, 2^72014918 is an apocalyptic number.

72014918 is a deficient number, since it is larger than the sum of its proper divisors (36007462).

72014918 is a wasteful number, since it uses less digits than its factorization.

72014918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36007461.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 72014918 is about 8486.1603802898. The cubic root of 72014918 is about 416.0454947470.

The spelling of 72014918 in words is "seventy-two million, fourteen thousand, nine hundred eighteen".