13439800 has 96 divisors (see below), whose sum is σ = 35154000. Its totient is φ = 4736000.

The previous prime is 13439773. The next prime is 13439807. The reversal of 13439800 is 893431.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13439807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90126 + ... + 90274.

Almost surely, 2^13439800 is an apocalyptic number.

13439800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13439800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17577000).

13439800 is an abundant number, since it is smaller than the sum of its proper divisors (21714200).

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

13439800 is a wasteful number, since it uses less digits than its factorization.

13439800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13439800 is about 3666.0332786269. The cubic root of 13439800 is about 237.7556987551.

The spelling of 13439800 in words is "thirteen million, four hundred thirty-nine thousand, eight hundred".