18070672 has 20 divisors (see below), whose sum is σ = 36855280. Its totient is φ = 8559648.

The previous prime is 18070667. The next prime is 18070681. The reversal of 18070672 is 27607081.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 29418 + ... + 30025.

It is an arithmetic number, because the mean of its divisors is an integer number (1842764).

Almost surely, 2^18070672 is an apocalyptic number.

It is an amenable number.

18070672 is an abundant number, since it is smaller than the sum of its proper divisors (18784608).

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

18070672 is a wasteful number, since it uses less digits than its factorization.

18070672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59470 (or 59464 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 18070672 is about 4250.9613030466. The cubic root of 18070672 is about 262.4166786196.

The spelling of 18070672 in words is "eighteen million, seventy thousand, six hundred seventy-two".