13331670 has 64 divisors (see below), whose sum is σ = 35458560. Its totient is φ = 3180800.

The previous prime is 13331663. The next prime is 13331671. The reversal of 13331670 is 7613331.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13331670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23146 + ... + 23714.

It is an arithmetic number, because the mean of its divisors is an integer number (554040).

Almost surely, 2^13331670 is an apocalyptic number.

13331670 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 13331670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17729280).

13331670 is an abundant number, since it is smaller than the sum of its proper divisors (22126890).

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

13331670 is a wasteful number, since it uses less digits than its factorization.

13331670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 13331670 is about 3651.2559483005. The cubic root of 13331670 is about 237.1163593906.

It can be divided in two parts, 133316 and 70, that added together give a triangular number (133386 = T₅₁₆).

The spelling of 13331670 in words is "thirteen million, three hundred thirty-one thousand, six hundred seventy".