13329870 has 64 divisors (see below), whose sum is σ = 34525440. Its totient is φ = 3281408.

The previous prime is 13329859. The next prime is 13329889. The reversal of 13329870 is 7892331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29869 + ... + 30311.

It is an arithmetic number, because the mean of its divisors is an integer number (539460).

Almost surely, 2^13329870 is an apocalyptic number.

13329870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13329870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17262720).

13329870 is an abundant number, since it is smaller than the sum of its proper divisors (21195570).

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

13329870 is a wasteful number, since it uses less digits than its factorization.

13329870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 13329870 is about 3651.0094494537. The cubic root of 13329870 is about 237.1056873428.

It can be divided in two parts, 133 and 29870, that added together give a palindrome (30003).

The spelling of 13329870 in words is "thirteen million, three hundred twenty-nine thousand, eight hundred seventy".