14457891 has 24 divisors (see below), whose sum is σ = 22818240. Its totient is φ = 8116752.

The previous prime is 14457887. The next prime is 14457893. The reversal of 14457891 is 19875441.

14457891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14457891 - 2² = 14457887 is a prime.

It is a super-2 number, since 2×14457891² = 418061224335762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14457893) 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, 7840 + ... + 9506.

It is an arithmetic number, because the mean of its divisors is an integer number (950760).

Almost surely, 2^14457891 is an apocalyptic number.

14457891 is a deficient number, since it is larger than the sum of its proper divisors (8360349).

14457891 is a wasteful number, since it uses less digits than its factorization.

14457891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1736 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 14457891 is about 3802.3533502293. The cubic root of 14457891 is about 243.6136668247.

The spelling of 14457891 in words is "fourteen million, four hundred fifty-seven thousand, eight hundred ninety-one".