13881488 has 20 divisors (see below), whose sum is σ = 27823740. Its totient is φ = 6701184.

The previous prime is 13881487. The next prime is 13881509. The reversal of 13881488 is 88418831.

It can be written as a sum of positive squares in 2 ways, for example, as 10316944 + 3564544 = 3212^2 + 1888^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13881487) 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, 14495 + ... + 15422.

It is an arithmetic number, because the mean of its divisors is an integer number (1391187).

Almost surely, 2^13881488 is an apocalyptic number.

It is an amenable number.

13881488 is an abundant number, since it is smaller than the sum of its proper divisors (13942252).

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

13881488 is a wasteful number, since it uses less digits than its factorization.

13881488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29954 (or 29948 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The square root of 13881488 is about 3725.7868967508. The cubic root of 13881488 is about 240.3322250834.

The spelling of 13881488 in words is "thirteen million, eight hundred eighty-one thousand, four hundred eighty-eight".