90119008 has 48 divisors (see below), whose sum is σ = 209774880. Its totient is φ = 37287936.

The previous prime is 90118981. The next prime is 90119009. The reversal of 90119008 is 80091109.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 7 ways as a sum of consecutive naturals, for example, 441 + ... + 13432.

It is an arithmetic number, because the mean of its divisors is an integer number (4370310).

Almost surely, 2^90119008 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 90119008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104887440).

90119008 is an abundant number, since it is smaller than the sum of its proper divisors (119655872).

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

90119008 is a wasteful number, since it uses less digits than its factorization.

90119008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13919 (or 13911 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 90119008 is about 9493.1031807307. The cubic root of 90119008 is about 448.3379146985.

The spelling of 90119008 in words is "ninety million, one hundred nineteen thousand, eight".