90128016 has 120 divisors (see below), whose sum is σ = 291436704. Its totient is φ = 25697280.

The previous prime is 90127979. The next prime is 90128021. The reversal of 90128016 is 61082109.

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, 25255 + ... + 28601.

Almost surely, 2^90128016 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 90128016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145718352).

90128016 is an abundant number, since it is smaller than the sum of its proper divisors (201308688).

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

90128016 is a wasteful number, since it uses less digits than its factorization.

90128016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389 (or 3380 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 90128016 is about 9493.5776185798. The cubic root of 90128016 is about 448.3528523292.

The spelling of 90128016 in words is "ninety million, one hundred twenty-eight thousand, sixteen".