13439760 has 80 divisors (see below), whose sum is σ = 43122240. Its totient is φ = 3458560.

The previous prime is 13439753. The next prime is 13439761. The reversal of 13439760 is 6793431.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (13439761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5995 + ... + 7925.

It is an arithmetic number, because the mean of its divisors is an integer number (539028).

Almost surely, 2^13439760 is an apocalyptic number.

13439760 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 13439760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21561120).

13439760 is an abundant number, since it is smaller than the sum of its proper divisors (29682480).

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

13439760 is a wasteful number, since it uses less digits than its factorization.

13439760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 13439760 is about 3666.0278231350. The cubic root of 13439760 is about 237.7554628826.

The spelling of 13439760 in words is "thirteen million, four hundred thirty-nine thousand, seven hundred sixty".