14409999 has 24 divisors (see below), whose sum is σ = 23203440. Its totient is φ = 8563968.

The previous prime is 14409979. The next prime is 14410003. The reversal of 14409999 is 99990441.

It is not a de Polignac number, because 14409999 - 2⁸ = 14409743 is a prime.

14409999 is a modest number, since divided by 9999 gives 1440 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14409919) 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, 429 + ... + 5385.

It is an arithmetic number, because the mean of its divisors is an integer number (966810).

Almost surely, 2^14409999 is an apocalyptic number.

14409999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14409999 is a deficient number, since it is larger than the sum of its proper divisors (8793441).

14409999 is a wasteful number, since it uses less digits than its factorization.

14409999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999 (or 4996 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 14409999 is about 3796.0504475046. The cubic root of 14409999 is about 243.3443778478.

It can be divided in two parts, 1 and 4409999, that added together give a square (4410000 = 2100²).

The spelling of 14409999 in words is "fourteen million, four hundred nine thousand, nine hundred ninety-nine".