14439869 has 4 divisors (see below), whose sum is σ = 14582940. Its totient is φ = 14296800.

The previous prime is 14439863. The next prime is 14439871. The reversal of 14439869 is 96893441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6943225 + 7496644 = 2635^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 14439869 - 2⁴ = 14439853 is a prime.

It is a super-2 number, since 2×14439869² = 417019633474322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14439863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71384 + ... + 71585.

It is an arithmetic number, because the mean of its divisors is an integer number (3645735).

Almost surely, 2^14439869 is an apocalyptic number.

It is an amenable number.

14439869 is a deficient number, since it is larger than the sum of its proper divisors (143071).

14439869 is a wasteful number, since it uses less digits than its factorization.

14439869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143070.

The product of its digits is 186624, while the sum is 44.

The square root of 14439869 is about 3799.9827631188. The cubic root of 14439869 is about 243.5124019167.

The spelling of 14439869 in words is "fourteen million, four hundred thirty-nine thousand, eight hundred sixty-nine".