4042044 has 18 divisors (see below), whose sum is σ = 10217480. Its totient is φ = 1347336.

The previous prime is 4042037. The next prime is 4042057. The reversal of 4042044 is 4402404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 56104 + ... + 56175.

Almost surely, 2^4042044 is an apocalyptic number.

It is an amenable number.

4042044 is an abundant number, since it is smaller than the sum of its proper divisors (6175436).

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

4042044 is a wasteful number, since it uses less digits than its factorization.

4042044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112289 (or 112284 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4042044 is about 2010.4835239315. The cubic root of 4042044 is about 159.2943402692.

Adding to 4042044 its reverse (4402404), we get a palindrome (8444448).

The spelling of 4042044 in words is "four million, forty-two thousand, forty-four", and thus it is an eban number.