14405749 has 8 divisors (see below), whose sum is σ = 15289560. Its totient is φ = 13526016.

The previous prime is 14405707. The next prime is 14405753. The reversal of 14405749 is 94750441.

It can be written as a sum of positive squares in 4 ways, for example, as 1575025 + 12830724 = 1255^2 + 3582^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-14405749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14402749) 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, 9367 + ... + 10795.

It is an arithmetic number, because the mean of its divisors is an integer number (1911195).

Almost surely, 2^14405749 is an apocalyptic number.

It is an amenable number.

14405749 is a deficient number, since it is larger than the sum of its proper divisors (883811).

14405749 is a wasteful number, since it uses less digits than its factorization.

14405749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 14405749 is about 3795.4906138733. The cubic root of 14405749 is about 243.3204519776.

The spelling of 14405749 in words is "fourteen million, four hundred five thousand, seven hundred forty-nine".