10635640 has 16 divisors (see below), whose sum is σ = 23930280. Its totient is φ = 4254240.

The previous prime is 10635619. The next prime is 10635661. The reversal of 10635640 is 4653601.

It is an interprime number because it is at equal distance from previous prime (10635619) and next prime (10635661).

It is a super-2 number, since 2×10635640² = 226233676419200, 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 3 ways as a sum of consecutive naturals, for example, 132906 + ... + 132985.

Almost surely, 2^10635640 is an apocalyptic number.

10635640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10635640 is an abundant number, since it is smaller than the sum of its proper divisors (13294640).

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

10635640 is a wasteful number, since it uses less digits than its factorization.

10635640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265902 (or 265898 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 10635640 is about 3261.2328957006. The cubic root of 10635640 is about 219.9148430750.

The spelling of 10635640 in words is "ten million, six hundred thirty-five thousand, six hundred forty".