13642044 has 48 divisors (see below), whose sum is σ = 34560288. Its totient is φ = 4163328.

The previous prime is 13642037. The next prime is 13642067. The reversal of 13642044 is 44024631.

It is a super-2 number, since 2×13642044² = 372210728995872, which contains 22 as substring.

It is a congruent number.

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, 24214 + ... + 24770.

It is an arithmetic number, because the mean of its divisors is an integer number (720006).

Almost surely, 2^13642044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13642044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17280144).

13642044 is an abundant number, since it is smaller than the sum of its proper divisors (20918244).

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

13642044 is a wasteful number, since it uses less digits than its factorization.

13642044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 13642044 is about 3693.5137741722. The cubic root of 13642044 is about 238.9423598912.

Adding to 13642044 its reverse (44024631), we get a palindrome (57666675).

The spelling of 13642044 in words is "thirteen million, six hundred forty-two thousand, forty-four".