90160000 has 240 divisors, whose sum is σ = 272444040. Its totient is φ = 29568000.

The previous prime is 90159991. The next prime is 90160051. The reversal of 90160000 is 6109.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3919989 + ... + 3920011.

Almost surely, 2^90160000 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 90160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136222020).

90160000 is an abundant number, since it is smaller than the sum of its proper divisors (182284040).

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

90160000 is an equidigital number, since it uses as much as digits as its factorization.

90160000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 90160000 is about 9495.2619763754. The cubic root of 90160000 is about 448.4058821650.

Adding to 90160000 its reverse (6109), we get a palindrome (90166109).

The spelling of 90160000 in words is "ninety million, one hundred sixty thousand".