13869810 has 48 divisors (see below), whose sum is σ = 37964160. Its totient is φ = 3503520.

The previous prime is 13869809. The next prime is 13869811. The reversal of 13869810 is 1896831.

It is an interprime number because it is at equal distance from previous prime (13869809) and next prime (13869811).

It is a super-2 number, since 2×13869810² = 384743258872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13869811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2346 + ... + 5765.

It is an arithmetic number, because the mean of its divisors is an integer number (790920).

Almost surely, 2^13869810 is an apocalyptic number.

13869810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13869810 is an abundant number, since it is smaller than the sum of its proper divisors (24094350).

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

13869810 is a wasteful number, since it uses less digits than its factorization.

13869810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8143 (or 8140 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 13869810 is about 3724.2193812932. The cubic root of 13869810 is about 240.2648118703.

The spelling of 13869810 in words is "thirteen million, eight hundred sixty-nine thousand, eight hundred ten".