13926820 has 24 divisors (see below), whose sum is σ = 29481984. Its totient is φ = 5525856.

The previous prime is 13926817. The next prime is 13926823. The reversal of 13926820 is 2862931.

It is an interprime number because it is at equal distance from previous prime (13926817) and next prime (13926823).

It is not an unprimeable number, because it can be changed into a prime (13926823) 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, 202 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (1228416).

Almost surely, 2^13926820 is an apocalyptic number.

13926820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13926820 is an abundant number, since it is smaller than the sum of its proper divisors (15555164).

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

13926820 is a wasteful number, since it uses less digits than its factorization.

13926820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619 (or 5617 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 13926820 is about 3731.8654852500. The cubic root of 13926820 is about 240.5935539949.

The spelling of 13926820 in words is "thirteen million, nine hundred twenty-six thousand, eight hundred twenty".