42236624 has 10 divisors (see below), whose sum is σ = 81833490. Its totient is φ = 21118304.

The previous prime is 42236617. The next prime is 42236657. The reversal of 42236624 is 42663224.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 8596624 = 5800^2 + 2932^2 .

It is a congruent number.

It is an unprimeable number.

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, 1319879 + ... + 1319910.

It is an arithmetic number, because the mean of its divisors is an integer number (8183349).

Almost surely, 2^42236624 is an apocalyptic number.

It is an amenable number.

42236624 is a deficient number, since it is larger than the sum of its proper divisors (39596866).

42236624 is a wasteful number, since it uses less digits than its factorization.

42236624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639797 (or 2639791 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 42236624 is about 6498.9709954731. The cubic root of 42236624 is about 348.2542291674.

Adding to 42236624 its reverse (42663224), we get a palindrome (84899848).

The spelling of 42236624 in words is "forty-two million, two hundred thirty-six thousand, six hundred twenty-four".