13722246 has 24 divisors (see below), whose sum is σ = 30424680. Its totient is φ = 4467456.

The previous prime is 13722239. The next prime is 13722277. The reversal of 13722246 is 64222731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8091 + ... + 9638.

It is an arithmetic number, because the mean of its divisors is an integer number (1267695).

Almost surely, 2^13722246 is an apocalyptic number.

13722246 is an abundant number, since it is smaller than the sum of its proper divisors (16702434).

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

13722246 is a wasteful number, since it uses less digits than its factorization.

13722246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17780 (or 17777 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 13722246 is about 3704.3550045858. The cubic root of 13722246 is about 239.4096951076.

Adding to 13722246 its reverse (64222731), we get a palindrome (77944977).

The spelling of 13722246 in words is "thirteen million, seven hundred twenty-two thousand, two hundred forty-six".