10091840 has 112 divisors (see below), whose sum is σ = 27212544. Its totient is φ = 3532800.

The previous prime is 10091839. The next prime is 10091899. The reversal of 10091840 is 4819001.

10091840 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165410 + ... + 165470.

Almost surely, 2^10091840 is an apocalyptic number.

10091840 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 10091840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13606272).

10091840 is an abundant number, since it is smaller than the sum of its proper divisors (17120704).

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

10091840 is a wasteful number, since it uses less digits than its factorization.

10091840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 10091840 is about 3176.7656507838. The cubic root of 10091840 is about 216.1010044306.

The spelling of 10091840 in words is "ten million, ninety-one thousand, eight hundred forty".