90049038 has 16 divisors (see below), whose sum is σ = 184491216. Its totient is φ = 29284160.

The previous prime is 90049033. The next prime is 90049061. The reversal of 90049038 is 83094009.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90049033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182781 + ... + 183272.

It is an arithmetic number, because the mean of its divisors is an integer number (11530701).

Almost surely, 2^90049038 is an apocalyptic number.

90049038 is an abundant number, since it is smaller than the sum of its proper divisors (94442178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90049038 is a wasteful number, since it uses less digits than its factorization.

90049038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366099.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 90049038 is about 9489.4171580767. The cubic root of 90049038 is about 448.2218521464.

The spelling of 90049038 in words is "ninety million, forty-nine thousand, thirty-eight".