13899830 has 48 divisors (see below), whose sum is σ = 30656880. Its totient is φ = 4511808.

The previous prime is 13899803. The next prime is 13899839. The reversal of 13899830 is 3899831.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13899839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8564 + ... + 10056.

It is an arithmetic number, because the mean of its divisors is an integer number (638685).

Almost surely, 2^13899830 is an apocalyptic number.

13899830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13899830 is an abundant number, since it is smaller than the sum of its proper divisors (16757050).

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

13899830 is a wasteful number, since it uses less digits than its factorization.

13899830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 13899830 is about 3728.2475776161. The cubic root of 13899830 is about 240.4380310687.

Subtracting from 13899830 its reverse (3899831), we obtain a palindrome (9999999).

The spelling of 13899830 in words is "thirteen million, eight hundred ninety-nine thousand, eight hundred thirty".