90004244 has 24 divisors (see below), whose sum is σ = 179299008. Its totient is φ = 39131840.

The previous prime is 90004217. The next prime is 90004247. The reversal of 90004244 is 44240009.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90004247) 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, 43457 + ... + 45480.

It is an arithmetic number, because the mean of its divisors is an integer number (7470792).

Almost surely, 2^90004244 is an apocalyptic number.

It is an amenable number.

90004244 is a deficient number, since it is larger than the sum of its proper divisors (89294764).

90004244 is a wasteful number, since it uses less digits than its factorization.

90004244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88975 (or 88973 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 90004244 is about 9487.0566563081. The cubic root of 90004244 is about 448.1475186493.

The spelling of 90004244 in words is "ninety million, four thousand, two hundred forty-four".