90441750 has 192 divisors, whose sum is σ = 276576768. Its totient is φ = 19588800.

The previous prime is 90441739. The next prime is 90441779. The reversal of 90441750 is 5714409.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 845197 + ... + 845303.

It is an arithmetic number, because the mean of its divisors is an integer number (1440504).

Almost surely, 2^90441750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90441750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138288384).

90441750 is an abundant number, since it is smaller than the sum of its proper divisors (186135018).

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

90441750 is a wasteful number, since it uses less digits than its factorization.

90441750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 90441750 is about 9510.0867503930. The cubic root of 90441750 is about 448.8724859170.

The spelling of 90441750 in words is "ninety million, four hundred forty-one thousand, seven hundred fifty".