90119000 has 64 divisors (see below), whose sum is σ = 212340960. Its totient is φ = 35798400.

The previous prime is 90118981. The next prime is 90119009. The reversal of 90119000 is 91109.

It is a super-2 number, since 2×90119000² = 16242868322000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90119009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226802 + ... + 227198.

Almost surely, 2^90119000 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 90119000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106170480).

90119000 is an abundant number, since it is smaller than the sum of its proper divisors (122221960).

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

90119000 is a wasteful number, since it uses less digits than its factorization.

90119000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 90119000 is about 9493.1027593722. The cubic root of 90119000 is about 448.3379014320.

The spelling of 90119000 in words is "ninety million, one hundred nineteen thousand".