10685840 has 40 divisors (see below), whose sum is σ = 27105408. Its totient is φ = 3885440.

The previous prime is 10685837. The next prime is 10685849. The reversal of 10685840 is 4858601.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10685840² = 228374353011200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10685797 and 10685806.

It is not an unprimeable number, because it can be changed into a prime (10685849) 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, 5192 + ... + 6951.

Almost surely, 2^10685840 is an apocalyptic number.

10685840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10685840 is an abundant number, since it is smaller than the sum of its proper divisors (16419568).

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

10685840 is a wasteful number, since it uses less digits than its factorization.

10685840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12167 (or 12161 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 10685840 is about 3268.9203110507. The cubic root of 10685840 is about 220.2602979617.

The spelling of 10685840 in words is "ten million, six hundred eighty-five thousand, eight hundred forty".