13858988 has 24 divisors (see below), whose sum is σ = 28494480. Its totient is φ = 5814720.

The previous prime is 13858981. The next prime is 13858993. The reversal of 13858988 is 88985831.

It is not an unprimeable number, because it can be changed into a prime (13858981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11543 + ... + 12686.

It is an arithmetic number, because the mean of its divisors is an integer number (1187270).

Almost surely, 2^13858988 is an apocalyptic number.

It is an amenable number.

13858988 is an abundant number, since it is smaller than the sum of its proper divisors (14635492).

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

13858988 is a wasteful number, since it uses less digits than its factorization.

13858988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24257 (or 24255 counting only the distinct ones).

The product of its digits is 552960, while the sum is 50.

The square root of 13858988 is about 3722.7661758429. The cubic root of 13858988 is about 240.2023062713.

The spelling of 13858988 in words is "thirteen million, eight hundred fifty-eight thousand, nine hundred eighty-eight".