13621334 has 8 divisors (see below), whose sum is σ = 20455848. Its totient is φ = 6802720.

The previous prime is 13621331. The next prime is 13621343. The reversal of 13621334 is 43312631.

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 (13621331) 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, 1532 + ... + 5439.

It is an arithmetic number, because the mean of its divisors is an integer number (2556981).

Almost surely, 2^13621334 is an apocalyptic number.

13621334 is a deficient number, since it is larger than the sum of its proper divisors (6834514).

13621334 is an equidigital number, since it uses as much as digits as its factorization.

13621334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950.

The product of its digits is 1296, while the sum is 23.

The square root of 13621334 is about 3690.7091459501. The cubic root of 13621334 is about 238.8213857788.

Adding to 13621334 its reverse (43312631), we get a palindrome (56933965).

The spelling of 13621334 in words is "thirteen million, six hundred twenty-one thousand, three hundred thirty-four".