42221334 has 8 divisors (see below), whose sum is σ = 84442680. Its totient is φ = 14073776.

The previous prime is 42221321. The next prime is 42221339. The reversal of 42221334 is 43312224.

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

42221334 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42221334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42221339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3518439 + ... + 3518450.

It is an arithmetic number, because the mean of its divisors is an integer number (10555335).

Almost surely, 2^42221334 is an apocalyptic number.

42221334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42221334 is a wasteful number, since it uses less digits than its factorization.

42221334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7036894.

The product of its digits is 1152, while the sum is 21.

The square root of 42221334 is about 6497.7945489220. The cubic root of 42221334 is about 348.2122004782.

Adding to 42221334 its reverse (43312224), we get a palindrome (85533558).

The spelling of 42221334 in words is "forty-two million, two hundred twenty-one thousand, three hundred thirty-four".