90373018 has 16 divisors (see below), whose sum is σ = 139857480. Its totient is φ = 43765056.

The previous prime is 90373001. The next prime is 90373021. The reversal of 90373018 is 81037309.

It can be written as a sum of positive squares in 4 ways, for example, as 72539289 + 17833729 = 8517^2 + 4223^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14280 + ... + 19612.

Almost surely, 2^90373018 is an apocalyptic number.

90373018 is a deficient number, since it is larger than the sum of its proper divisors (49484462).

90373018 is a wasteful number, since it uses less digits than its factorization.

90373018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 90373018 is about 9506.4724267206. The cubic root of 90373018 is about 448.7587489080.

It can be divided in two parts, 9037301 and 8, that added together give a palindrome (9037309).

The spelling of 90373018 in words is "ninety million, three hundred seventy-three thousand, eighteen".