13839970 has 16 divisors (see below), whose sum is σ = 25008768. Its totient is φ = 5514480.

The previous prime is 13839953. The next prime is 13839971. The reversal of 13839970 is 7993831.

13839970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13839971) 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, 157 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (1563048).

Almost surely, 2^13839970 is an apocalyptic number.

13839970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13839970 is a deficient number, since it is larger than the sum of its proper divisors (11168798).

13839970 is a wasteful number, since it uses less digits than its factorization.

13839970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5385.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 13839970 is about 3720.2110155205. The cubic root of 13839970 is about 240.0923834157.

The spelling of 13839970 in words is "thirteen million, eight hundred thirty-nine thousand, nine hundred seventy".