10869640 has 32 divisors (see below), whose sum is σ = 24552000. Its totient is φ = 4330944.

The previous prime is 10869637. The next prime is 10869641. The reversal of 10869640 is 4696801.

10869640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10869596 and 10869605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10869641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17251 + ... + 17869.

It is an arithmetic number, because the mean of its divisors is an integer number (767250).

Almost surely, 2^10869640 is an apocalyptic number.

10869640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10869640 is an abundant number, since it is smaller than the sum of its proper divisors (13682360).

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

10869640 is a wasteful number, since it uses less digits than its factorization.

10869640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 10869640 is about 3296.9137083036. The cubic root of 10869640 is about 221.5159759992.

The spelling of 10869640 in words is "ten million, eight hundred sixty-nine thousand, six hundred forty".