90002118 has 8 divisors (see below), whose sum is σ = 180004248. Its totient is φ = 30000704.

The previous prime is 90002117. The next prime is 90002137. The reversal of 90002118 is 81120009.

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

90002118 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 90002094 and 90002103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90002117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7500171 + ... + 7500182.

It is an arithmetic number, because the mean of its divisors is an integer number (22500531).

Almost surely, 2^90002118 is an apocalyptic number.

90002118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90002118 is a wasteful number, since it uses less digits than its factorization.

90002118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15000358.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 90002118 is about 9486.9446082498. The cubic root of 90002118 is about 448.1439900412.

The spelling of 90002118 in words is "ninety million, two thousand, one hundred eighteen".