14857780 has 36 divisors (see below), whose sum is σ = 36297828. Its totient is φ = 5093760.

The previous prime is 14857769. The next prime is 14857789. The reversal of 14857780 is 8775841.

14857780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6780816 + 8076964 = 2604^2 + 2842^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14857789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6601 + ... + 8560.

It is an arithmetic number, because the mean of its divisors is an integer number (1008273).

Almost surely, 2^14857780 is an apocalyptic number.

14857780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14857780 is an abundant number, since it is smaller than the sum of its proper divisors (21440048).

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

14857780 is a wasteful number, since it uses less digits than its factorization.

14857780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15184 (or 15175 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 14857780 is about 3854.5790950505. The cubic root of 14857780 is about 245.8392983965.

The spelling of 14857780 in words is "fourteen million, eight hundred fifty-seven thousand, seven hundred eighty".