42452224 has 18 divisors (see below), whose sum is σ = 84739130. Its totient is φ = 21225984.

The previous prime is 42452203. The next prime is 42452231. The reversal of 42452224 is 42225424.

It can be written as a sum of positive squares in only one way, i.e., 41370624 + 1081600 = 6432^2 + 1040^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82659 + ... + 83170.

Almost surely, 2^42452224 is an apocalyptic number.

It is an amenable number.

42452224 is a deficient number, since it is larger than the sum of its proper divisors (42286906).

42452224 is an equidigital number, since it uses as much as digits as its factorization.

42452224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165845 (or 165831 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The square root of 42452224 is about 6515.5371229086. The cubic root of 42452224 is about 348.8457869921.

Adding to 42452224 its reverse (42225424), we get a palindrome (84677648).

The spelling of 42452224 in words is "forty-two million, four hundred fifty-two thousand, two hundred twenty-four".