13902288 has 40 divisors (see below), whose sum is σ = 36530400. Its totient is φ = 4554624.

The previous prime is 13902263. The next prime is 13902289. The reversal of 13902288 is 88220931.

It is a super-2 number, since 2×13902288² = 386547223269888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13902289) 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, 378 + ... + 5286.

It is an arithmetic number, because the mean of its divisors is an integer number (913260).

Almost surely, 2^13902288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13902288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18265200).

13902288 is an abundant number, since it is smaller than the sum of its proper divisors (22628112).

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

13902288 is a wasteful number, since it uses less digits than its factorization.

13902288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13902288 is about 3728.5772085341. The cubic root of 13902288 is about 240.4522029890.

The spelling of 13902288 in words is "thirteen million, nine hundred two thousand, two hundred eighty-eight".