42684322 has 4 divisors (see below), whose sum is σ = 64026486. Its totient is φ = 21342160.

The previous prime is 42684283. The next prime is 42684329. The reversal of 42684322 is 22348624.

42684322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36832761 + 5851561 = 6069^2 + 2419^2 .

It is a super-3 number, since 3×42684322³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42684329) by changing a digit.

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, 10671079 + ... + 10671082.

Almost surely, 2^42684322 is an apocalyptic number.

42684322 is a deficient number, since it is larger than the sum of its proper divisors (21342164).

42684322 is a wasteful number, since it uses less digits than its factorization.

42684322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21342163.

The product of its digits is 18432, while the sum is 31.

The square root of 42684322 is about 6533.3239625783. The cubic root of 42684322 is about 349.4803772302.

It can be divided in two parts, 426 and 84322, that added together give a palindrome (84748).

The spelling of 42684322 in words is "forty-two million, six hundred eighty-four thousand, three hundred twenty-two".