90444884 has 6 divisors (see below), whose sum is σ = 158278554. Its totient is φ = 45222440.

The previous prime is 90444877. The next prime is 90444899. The reversal of 90444884 is 48844409.

It can be written as a sum of positive squares in only one way, i.e., 81504784 + 8940100 = 9028^2 + 2990^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11305607 + ... + 11305614.

It is an arithmetic number, because the mean of its divisors is an integer number (26379759).

Almost surely, 2^90444884 is an apocalyptic number.

It is an amenable number.

90444884 is a deficient number, since it is larger than the sum of its proper divisors (67833670).

90444884 is a wasteful number, since it uses less digits than its factorization.

90444884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22611225 (or 22611223 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 90444884 is about 9510.2515213847. The cubic root of 90444884 is about 448.8776706542.

The spelling of 90444884 in words is "ninety million, four hundred forty-four thousand, eight hundred eighty-four".