42724022 has 8 divisors (see below), whose sum is σ = 69912072. Its totient is φ = 19420000.

The previous prime is 42724007. The next prime is 42724039. The reversal of 42724022 is 22042724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970979 + ... + 971022.

It is an arithmetic number, because the mean of its divisors is an integer number (8739009).

Almost surely, 2^42724022 is an apocalyptic number.

42724022 is a deficient number, since it is larger than the sum of its proper divisors (27188050).

42724022 is a wasteful number, since it uses less digits than its factorization.

42724022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942014.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 42724022 is about 6536.3615261092. The cubic root of 42724022 is about 349.5886923453.

Adding to 42724022 its reverse (22042724), we get a palindrome (64766746).

The spelling of 42724022 in words is "forty-two million, seven hundred twenty-four thousand, twenty-two".