14857720 has 32 divisors (see below), whose sum is σ = 34336800. Its totient is φ = 5781888.

The previous prime is 14857697. The next prime is 14857721. The reversal of 14857720 is 2775841.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14857721) 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, 3540 + ... + 6499.

It is an arithmetic number, because the mean of its divisors is an integer number (1073025).

Almost surely, 2^14857720 is an apocalyptic number.

14857720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14857720 is an abundant number, since it is smaller than the sum of its proper divisors (19479080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14857720 is a wasteful number, since it uses less digits than its factorization.

14857720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087 (or 10083 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 14857720 is about 3854.5713120917. The cubic root of 14857720 is about 245.8389674728.

The spelling of 14857720 in words is "fourteen million, eight hundred fifty-seven thousand, seven hundred twenty".