42204744 has 144 divisors (see below), whose sum is σ = 128402820. Its totient is φ = 12472320.

The previous prime is 42204677. The next prime is 42204749. The reversal of 42204744 is 44740224.

42204744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 16499844 + 25704900 = 4062^2 + 5070^2 .

It is a super-2 number, since 2×42204744² = 3562480832211072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42204749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1029364 + ... + 1029404.

Almost surely, 2^42204744 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 42204744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64201410).

42204744 is an abundant number, since it is smaller than the sum of its proper divisors (86198076).

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

42204744 is a wasteful number, since it uses less digits than its factorization.

42204744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 42204744 is about 6496.5178365029. The cubic root of 42204744 is about 348.1665869091.

Adding to 42204744 its reverse (44740224), we get a palindrome (86944968).

The spelling of 42204744 in words is "forty-two million, two hundred four thousand, seven hundred forty-four".