90026818 has 12 divisors (see below), whose sum is σ = 157087782. Its totient is φ = 38582880.

The previous prime is 90026813. The next prime is 90026819. The reversal of 90026818 is 81862009.

It can be written as a sum of positive squares in only one way, i.e., 79156609 + 10870209 = 8897^2 + 3297^2 .

It is not an unprimeable number, because it can be changed into a prime (90026813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 459223 + ... + 459418.

Almost surely, 2^90026818 is an apocalyptic number.

90026818 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

90026818 is a deficient number, since it is larger than the sum of its proper divisors (67060964).

90026818 is a wasteful number, since it uses less digits than its factorization.

90026818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918657 (or 918650 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 90026818 is about 9488.2463079328. The cubic root of 90026818 is about 448.1849822028.

The spelling of 90026818 in words is "ninety million, twenty-six thousand, eight hundred eighteen".