90100418 has 4 divisors (see below), whose sum is σ = 135150630. Its totient is φ = 45050208.

The previous prime is 90100397. The next prime is 90100447. The reversal of 90100418 is 81400109.

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

It can be written as a sum of positive squares in only one way, i.e., 89548369 + 552049 = 9463^2 + 743^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90100393 and 90100402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22525103 + ... + 22525106.

Almost surely, 2^90100418 is an apocalyptic number.

90100418 is a deficient number, since it is larger than the sum of its proper divisors (45050212).

90100418 is a wasteful number, since it uses less digits than its factorization.

90100418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45050211.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 90100418 is about 9492.1239983473. The cubic root of 90100418 is about 448.3070844472.

The spelling of 90100418 in words is "ninety million, one hundred thousand, four hundred eighteen".