90026644 has 12 divisors (see below), whose sum is σ = 158000500. Its totient is φ = 44883648.

The previous prime is 90026641. The next prime is 90026647. The reversal of 90026644 is 44662009.

It is an interprime number because it is at equal distance from previous prime (90026641) and next prime (90026647).

It can be written as a sum of positive squares in 2 ways, for example, as 60996100 + 29030544 = 7810^2 + 5388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90026641) 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, 30849 + ... + 33640.

Almost surely, 2^90026644 is an apocalyptic number.

It is an amenable number.

90026644 is a deficient number, since it is larger than the sum of its proper divisors (67973856).

90026644 is a wasteful number, since it uses less digits than its factorization.

90026644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64842 (or 64840 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 90026644 is about 9488.2371386891. The cubic root of 90026644 is about 448.1846934584.

The spelling of 90026644 in words is "ninety million, twenty-six thousand, six hundred forty-four".