42320244 has 24 divisors (see below), whose sum is σ = 98861728. Its totient is φ = 14090400.

The previous prime is 42320237. The next prime is 42320249. The reversal of 42320244 is 44202324.

It is a self number, because there is not a number n which added to its sum of digits gives 42320244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42320249) 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 in 7 ways as a sum of consecutive naturals, for example, 13419 + ... + 16269.

Almost surely, 2^42320244 is an apocalyptic number.

It is an amenable number.

42320244 is an abundant number, since it is smaller than the sum of its proper divisors (56541484).

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

42320244 is a wasteful number, since it uses less digits than its factorization.

42320244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095 (or 4093 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 42320244 is about 6505.4011405908. The cubic root of 42320244 is about 348.4839020522.

Adding to 42320244 its reverse (44202324), we get a palindrome (86522568).

The spelling of 42320244 in words is "forty-two million, three hundred twenty thousand, two hundred forty-four".