13974820 has 24 divisors (see below), whose sum is σ = 29449728. Its totient is φ = 5570400.

The previous prime is 13974803. The next prime is 13974827. The reversal of 13974820 is 2847931.

13974820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13974827) 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, 5565 + ... + 7675.

It is an arithmetic number, because the mean of its divisors is an integer number (1227072).

Almost surely, 2^13974820 is an apocalyptic number.

13974820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13974820 is an abundant number, since it is smaller than the sum of its proper divisors (15474908).

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

13974820 is a wasteful number, since it uses less digits than its factorization.

13974820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451 (or 2449 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 13974820 is about 3738.2910534093. The cubic root of 13974820 is about 240.8696459362.

The spelling of 13974820 in words is "thirteen million, nine hundred seventy-four thousand, eight hundred twenty".