10921400 has 96 divisors (see below), whose sum is σ = 30132000. Its totient is φ = 3601920.

The previous prime is 10921373. The next prime is 10921403. The reversal of 10921400 is 412901.

It is a happy number.

10921400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10921403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40466 + ... + 40734.

It is an arithmetic number, because the mean of its divisors is an integer number (313875).

Almost surely, 2^10921400 is an apocalyptic number.

10921400 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 10921400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15066000).

10921400 is an abundant number, since it is smaller than the sum of its proper divisors (19210600).

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

10921400 is a wasteful number, since it uses less digits than its factorization.

10921400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 10921400 is about 3304.7541512191. The cubic root of 10921400 is about 221.8670307261.

The spelling of 10921400 in words is "ten million, nine hundred twenty-one thousand, four hundred".