4013244 has 36 divisors (see below), whose sum is σ = 10395840. Its totient is φ = 1304640.

The previous prime is 4013227. The next prime is 4013267. The reversal of 4013244 is 4423104.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4013244² = 32212254807072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 117 + ... + 2835.

Almost surely, 2^4013244 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 4013244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5197920).

4013244 is an abundant number, since it is smaller than the sum of its proper divisors (6382596).

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

4013244 is a wasteful number, since it uses less digits than its factorization.

4013244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4013244 is about 2003.3082638476. The cubic root of 4013244 is about 158.9151083563.

Adding to 4013244 its reverse (4423104), we get a palindrome (8436348).

The spelling of 4013244 in words is "four million, thirteen thousand, two hundred forty-four".