10989400 has 48 divisors (see below), whose sum is σ = 26672400. Its totient is φ = 4202880.

The previous prime is 10989397. The next prime is 10989401. The reversal of 10989400 is 498901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3406 + ... + 5794.

It is an arithmetic number, because the mean of its divisors is an integer number (555675).

Almost surely, 2^10989400 is an apocalyptic number.

10989400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10989400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13336200).

10989400 is an abundant number, since it is smaller than the sum of its proper divisors (15683000).

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

10989400 is a wasteful number, since it uses less digits than its factorization.

10989400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 10989400 is about 3315.0263950684. The cubic root of 10989400 is about 222.3265491620.

The spelling of 10989400 in words is "ten million, nine hundred eighty-nine thousand, four hundred".