42645052 has 6 divisors (see below), whose sum is σ = 74628848. Its totient is φ = 21322524.

The previous prime is 42645049. The next prime is 42645077. The reversal of 42645052 is 25054624.

42645052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42645052.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5330628 + ... + 5330635.

Almost surely, 2^42645052 is an apocalyptic number.

It is an amenable number.

42645052 is a deficient number, since it is larger than the sum of its proper divisors (31983796).

42645052 is a wasteful number, since it uses less digits than its factorization.

42645052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661267 (or 10661265 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 42645052 is about 6530.3179095661. The cubic root of 42645052 is about 349.3731692071.

Adding to 42645052 its reverse (25054624), we get a palindrome (67699676).

It can be divided in two parts, 4264 and 5052, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 42645052 in words is "forty-two million, six hundred forty-five thousand, fifty-two".