90441505 has 48 divisors (see below), whose sum is σ = 141604416. Its totient is φ = 54794880.

The previous prime is 90441503. The next prime is 90441511. The reversal of 90441505 is 50514409.

It is not a de Polignac number, because 90441505 - 2¹ = 90441503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90441503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99262 + ... + 100168.

It is an arithmetic number, because the mean of its divisors is an integer number (2950092).

Almost surely, 2^90441505 is an apocalyptic number.

It is an amenable number.

90441505 is a deficient number, since it is larger than the sum of its proper divisors (51162911).

90441505 is a wasteful number, since it uses less digits than its factorization.

90441505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 90441505 is about 9510.0738693240. The cubic root of 90441505 is about 448.8720805959.

The spelling of 90441505 in words is "ninety million, four hundred forty-one thousand, five hundred five".