14406989 has 4 divisors (see below), whose sum is σ = 14448156. Its totient is φ = 14365824.

The previous prime is 14406983. The next prime is 14407013. The reversal of 14406989 is 98960441.

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 11628100 + 2778889 = 3410^2 + 1667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14406989 is a prime.

It is a super-2 number, since 2×14406989² = 415122664092242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14406983) 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, 20054 + ... + 20759.

It is an arithmetic number, because the mean of its divisors is an integer number (3612039).

Almost surely, 2^14406989 is an apocalyptic number.

It is an amenable number.

14406989 is a deficient number, since it is larger than the sum of its proper divisors (41167).

14406989 is an equidigital number, since it uses as much as digits as its factorization.

14406989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41166.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 14406989 is about 3795.6539620993. The cubic root of 14406989 is about 243.3274331882.

The spelling of 14406989 in words is "fourteen million, four hundred six thousand, nine hundred eighty-nine".