10491900 has 72 divisors (see below), whose sum is σ = 31133424. Its totient is φ = 2726400.

The previous prime is 10491869. The next prime is 10491913. The reversal of 10491900 is 919401.

10491900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10491900² = 220159931220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11874 + ... + 12726.

Almost surely, 2^10491900 is an apocalyptic number.

10491900 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 10491900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15566712).

10491900 is an abundant number, since it is smaller than the sum of its proper divisors (20641524).

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

10491900 is a wasteful number, since it uses less digits than its factorization.

10491900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 10491900 is about 3239.1202509323. The cubic root of 10491900 is about 218.9196344057.

The spelling of 10491900 in words is "ten million, four hundred ninety-one thousand, nine hundred".