90464188 has 6 divisors (see below), whose sum is σ = 158312336. Its totient is φ = 45232092.

The previous prime is 90464183. The next prime is 90464189. The reversal of 90464188 is 88146409.

It is a self number, because there is not a number n which added to its sum of digits gives 90464188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90464183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11308020 + ... + 11308027.

Almost surely, 2^90464188 is an apocalyptic number.

It is an amenable number.

90464188 is a deficient number, since it is larger than the sum of its proper divisors (67848148).

90464188 is a wasteful number, since it uses less digits than its factorization.

90464188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22616051 (or 22616049 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 90464188 is about 9511.2663720453. The cubic root of 90464188 is about 448.9096036126.

The spelling of 90464188 in words is "ninety million, four hundred sixty-four thousand, one hundred eighty-eight".