13947020 has 12 divisors (see below), whose sum is σ = 29288784. Its totient is φ = 5578800.

The previous prime is 13946983. The next prime is 13947029. The reversal of 13947020 is 2074931.

It is not an unprimeable number, because it can be changed into a prime (13947029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348656 + ... + 348695.

It is an arithmetic number, because the mean of its divisors is an integer number (2440732).

Almost surely, 2^13947020 is an apocalyptic number.

13947020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13947020 is an abundant number, since it is smaller than the sum of its proper divisors (15341764).

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

13947020 is a wasteful number, since it uses less digits than its factorization.

13947020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697360 (or 697358 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13947020 is about 3734.5709258227. The cubic root of 13947020 is about 240.7098198756.

The spelling of 13947020 in words is "thirteen million, nine hundred forty-seven thousand, twenty".