13423722 has 32 divisors (see below), whose sum is σ = 29187648. Its totient is φ = 4091136.

The previous prime is 13423699. The next prime is 13423763. The reversal of 13423722 is 22732431.

13423722 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13423692 and 13423701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8053 + ... + 9575.

It is an arithmetic number, because the mean of its divisors is an integer number (912114).

Almost surely, 2^13423722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13423722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14593824).

13423722 is an abundant number, since it is smaller than the sum of its proper divisors (15763926).

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

13423722 is a wasteful number, since it uses less digits than its factorization.

13423722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654.

The product of its digits is 2016, while the sum is 24.

The square root of 13423722 is about 3663.8397890738. The cubic root of 13423722 is about 237.6608520690.

The spelling of 13423722 in words is "thirteen million, four hundred twenty-three thousand, seven hundred twenty-two".