14401989 has 32 divisors (see below), whose sum is σ = 24577280. Its totient is φ = 8164800.

The previous prime is 14401987. The next prime is 14401993. The reversal of 14401989 is 98910441.

It is not a de Polignac number, because 14401989 - 2¹ = 14401987 is a prime.

It is a super-2 number, since 2×14401989² = 414834574312242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14401987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33999 + ... + 34419.

It is an arithmetic number, because the mean of its divisors is an integer number (768040).

Almost surely, 2^14401989 is an apocalyptic number.

It is an amenable number.

14401989 is a deficient number, since it is larger than the sum of its proper divisors (10175291).

14401989 is a wasteful number, since it uses less digits than its factorization.

14401989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 14401989 is about 3794.9952569140. The cubic root of 14401989 is about 243.2992806959.

Adding to 14401989 its sum of digits (36), we get a square (14402025 = 3795²).

The spelling of 14401989 in words is "fourteen million, four hundred one thousand, nine hundred eighty-nine".