13946520 has 64 divisors (see below), whose sum is σ = 47819520. Its totient is φ = 3187584.

The previous prime is 13946503. The next prime is 13946531. The reversal of 13946520 is 2564931.

13946520 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13946520² = 389010840220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

13946520 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, 7462 + ... + 9141.

It is an arithmetic number, because the mean of its divisors is an integer number (747180).

Almost surely, 2^13946520 is an apocalyptic number.

13946520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13946520 is an abundant number, since it is smaller than the sum of its proper divisors (33873000).

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

13946520 is a wasteful number, since it uses less digits than its factorization.

13946520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16624 (or 16620 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 13946520 is about 3734.5039831281. The cubic root of 13946520 is about 240.7069433627.

The spelling of 13946520 in words is "thirteen million, nine hundred forty-six thousand, five hundred twenty".