90018718 has 8 divisors (see below), whose sum is σ = 135075960. Its totient is φ = 44993400.

The previous prime is 90018703. The next prime is 90018767. The reversal of 90018718 is 81781009.

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, 1168 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (16884495).

Almost surely, 2^90018718 is an apocalyptic number.

90018718 is a deficient number, since it is larger than the sum of its proper divisors (45057242).

90018718 is a wasteful number, since it uses less digits than its factorization.

90018718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15962.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 90018718 is about 9487.8194544374. The cubic root of 90018718 is about 448.1715402555.

The spelling of 90018718 in words is "ninety million, eighteen thousand, seven hundred eighteen".