13923420 has 48 divisors (see below), whose sum is σ = 44556288. Its totient is φ = 3182400.

The previous prime is 13923407. The next prime is 13923431. The reversal of 13923420 is 2432931.

13923420 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13923420 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16156 + ... + 16995.

It is an arithmetic number, because the mean of its divisors is an integer number (928256).

Almost surely, 2^13923420 is an apocalyptic number.

13923420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13923420 is an abundant number, since it is smaller than the sum of its proper divisors (30632868).

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

13923420 is a wasteful number, since it uses less digits than its factorization.

13923420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33170 (or 33168 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13923420 is about 3731.4099211960. The cubic root of 13923420 is about 240.5739734383.

The spelling of 13923420 in words is "thirteen million, nine hundred twenty-three thousand, four hundred twenty".