42204444 has 12 divisors (see below), whose sum is σ = 98477064. Its totient is φ = 14068144.

The previous prime is 42204433. The next prime is 42204451. The reversal of 42204444 is 44440224.

It is a tau number, because it is divible by the number of its divisors (12).

42204444 is a modest number, since divided by 4444 gives 4220 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758507 + ... + 1758530.

It is an arithmetic number, because the mean of its divisors is an integer number (8206422).

Almost surely, 2^42204444 is an apocalyptic number.

It is an amenable number.

42204444 is an abundant number, since it is smaller than the sum of its proper divisors (56272620).

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

42204444 is a wasteful number, since it uses less digits than its factorization.

42204444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517044 (or 3517042 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 42204444 is about 6496.4947471694. The cubic root of 42204444 is about 348.1657619606.

Adding to 42204444 its reverse (44440224), we get a palindrome (86644668).

The spelling of 42204444 in words is "forty-two million, two hundred four thousand, four hundred forty-four".