13805830 has 16 divisors (see below), whose sum is σ = 24927264. Its totient is φ = 5505280.

The previous prime is 13805821. The next prime is 13805839. The reversal of 13805830 is 3850831.

It is an interprime number because it is at equal distance from previous prime (13805821) and next prime (13805839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13805839) 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, 1575 + ... + 5485.

It is an arithmetic number, because the mean of its divisors is an integer number (1557954).

Almost surely, 2^13805830 is an apocalyptic number.

13805830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13805830 is a deficient number, since it is larger than the sum of its proper divisors (11121434).

13805830 is a wasteful number, since it uses less digits than its factorization.

13805830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 13805830 is about 3715.6197329651. The cubic root of 13805830 is about 239.8948034341.

The spelling of 13805830 in words is "thirteen million, eight hundred five thousand, eight hundred thirty".