90939044 has 48 divisors (see below), whose sum is σ = 189987840. Its totient is φ = 37272960.

The previous prime is 90939019. The next prime is 90939049. The reversal of 90939044 is 44093909.

It is a junction number, because it is equal to n+sod(n) for n = 90938989 and 90939007.

It is not an unprimeable number, because it can be changed into a prime (90939049) 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, 62477 + ... + 63915.

It is an arithmetic number, because the mean of its divisors is an integer number (3958080).

Almost surely, 2^90939044 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 90939044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94993920).

90939044 is an abundant number, since it is smaller than the sum of its proper divisors (99048796).

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

90939044 is a wasteful number, since it uses less digits than its factorization.

90939044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 90939044 is about 9536.1965164315. The cubic root of 90939044 is about 449.6936911355.

The spelling of 90939044 in words is "ninety million, nine hundred thirty-nine thousand, forty-four".