8990449254 has 128 divisors (see below), whose sum is σ = 21598617600. Its totient is φ = 2765093760.

The previous prime is 8990449243. The next prime is 8990449261. The reversal of 8990449254 is 4529440998.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8990449254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4014267 + ... + 4016505.

It is an arithmetic number, because the mean of its divisors is an integer number (168739200).

Almost surely, 2^8990449254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8990449254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10799308800).

8990449254 is an abundant number, since it is smaller than the sum of its proper divisors (12608168346).

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

8990449254 is a wasteful number, since it uses less digits than its factorization.

8990449254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 8990449254 is about 94817.9795924802. The cubic root of 8990449254 is about 2079.3477718019.

The spelling of 8990449254 in words is "eight billion, nine hundred ninety million, four hundred forty-nine thousand, two hundred fifty-four".