72014018 has 16 divisors (see below), whose sum is σ = 112407480. Its totient is φ = 34559616.

The previous prime is 72014017. The next prime is 72014021. The reversal of 72014018 is 81041027.

It can be written as a sum of positive squares in 4 ways, for example, as 70946929 + 1067089 = 8423^2 + 1033^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72013984 and 72014002.

It is not an unprimeable number, because it can be changed into a prime (72014017) by changing a digit.

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, 6446 + ... + 13622.

Almost surely, 2^72014018 is an apocalyptic number.

72014018 is a deficient number, since it is larger than the sum of its proper divisors (40393462).

72014018 is a wasteful number, since it uses less digits than its factorization.

72014018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 72014018 is about 8486.1073526087. The cubic root of 72014018 is about 416.0437615760.

The spelling of 72014018 in words is "seventy-two million, fourteen thousand, eighteen".