42224564 has 6 divisors (see below), whose sum is σ = 73892994. Its totient is φ = 21112280.

The previous prime is 42224557. The next prime is 42224569. The reversal of 42224564 is 46542224.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 18992164 = 4820^2 + 4358^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42224569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278067 + ... + 5278074.

It is an arithmetic number, because the mean of its divisors is an integer number (12315499).

Almost surely, 2^42224564 is an apocalyptic number.

It is an amenable number.

42224564 is a deficient number, since it is larger than the sum of its proper divisors (31668430).

42224564 is a wasteful number, since it uses less digits than its factorization.

42224564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556145 (or 10556143 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 42224564 is about 6498.0430900387. The cubic root of 42224564 is about 348.2210798497.

Adding to 42224564 its reverse (46542224), we get a palindrome (88766788).

The spelling of 42224564 in words is "forty-two million, two hundred twenty-four thousand, five hundred sixty-four".