9980454 has 64 divisors (see below), whose sum is σ = 23069952. Its totient is φ = 2851200.

The previous prime is 9980449. The next prime is 9980461. The reversal of 9980454 is 4540899.

It is a super-2 number, since 2×9980454² = 199218924092232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148929 + ... + 148995.

It is an arithmetic number, because the mean of its divisors is an integer number (360468).

Almost surely, 2^9980454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9980454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11534976).

9980454 is an abundant number, since it is smaller than the sum of its proper divisors (13089498).

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

9980454 is a wasteful number, since it uses less digits than its factorization.

9980454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 9980454 is about 3159.1856545635. The cubic root of 9980454 is about 215.3030088474.

The spelling of 9980454 in words is "nine million, nine hundred eighty thousand, four hundred fifty-four".