13920284 has 12 divisors (see below), whose sum is σ = 27840624. Its totient is φ = 5965824.

The previous prime is 13920259. The next prime is 13920287. The reversal of 13920284 is 48202931.

13920284 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13920287) 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, 248549 + ... + 248604.

It is an arithmetic number, because the mean of its divisors is an integer number (2320052).

Almost surely, 2^13920284 is an apocalyptic number.

13920284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13920284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13920284 is a wasteful number, since it uses less digits than its factorization.

13920284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497164 (or 497162 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 13920284 is about 3730.9896810364. The cubic root of 13920284 is about 240.5559104282. Note that the first 3 decimals are identical.

The spelling of 13920284 in words is "thirteen million, nine hundred twenty thousand, two hundred eighty-four".