10685540 has 24 divisors (see below), whose sum is σ = 22727040. Its totient is φ = 4219488.

The previous prime is 10685533. The next prime is 10685551. The reversal of 10685540 is 4558601.

It is a happy number.

It is a super-2 number, since 2×10685540² = 228361530183200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802 + ... + 4961.

It is an arithmetic number, because the mean of its divisors is an integer number (946960).

Almost surely, 2^10685540 is an apocalyptic number.

10685540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10685540 is an abundant number, since it is smaller than the sum of its proper divisors (12041500).

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

10685540 is a wasteful number, since it uses less digits than its factorization.

10685540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6851 (or 6849 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 10685540 is about 3268.8744240182. The cubic root of 10685540 is about 220.2582367072.

The spelling of 10685540 in words is "ten million, six hundred eighty-five thousand, five hundred forty".