90149488 has 120 divisors (see below), whose sum is σ = 217204848. Its totient is φ = 35712000.

The previous prime is 90149459. The next prime is 90149491. The reversal of 90149488 is 88494109.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2198748 + ... + 2198788.

Almost surely, 2^90149488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90149488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108602424).

90149488 is an abundant number, since it is smaller than the sum of its proper divisors (127055360).

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

90149488 is a wasteful number, since it uses less digits than its factorization.

90149488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 90149488 is about 9494.7084210101. The cubic root of 90149488 is about 448.3884545332.

The spelling of 90149488 in words is "ninety million, one hundred forty-nine thousand, four hundred eighty-eight".