13220734 has 8 divisors (see below), whose sum is σ = 19855440. Its totient is φ = 6602256.

The previous prime is 13220731. The next prime is 13220741. The reversal of 13220734 is 43702231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759 + ... + 5434.

It is an arithmetic number, because the mean of its divisors is an integer number (2481930).

Almost surely, 2^13220734 is an apocalyptic number.

13220734 is a deficient number, since it is larger than the sum of its proper divisors (6634706).

13220734 is an equidigital number, since it uses as much as digits as its factorization.

13220734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8114.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 13220734 is about 3636.0327281255. The cubic root of 13220734 is about 236.4568260564.

Adding to 13220734 its reverse (43702231), we get a palindrome (56922965).

The spelling of 13220734 in words is "thirteen million, two hundred twenty thousand, seven hundred thirty-four".