42216574 has 8 divisors (see below), whose sum is σ = 63885600. Its totient is φ = 20921376.

The previous prime is 42216541. The next prime is 42216589. The reversal of 42216574 is 47561224.

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, 93174 + ... + 93625.

It is an arithmetic number, because the mean of its divisors is an integer number (7985700).

Almost surely, 2^42216574 is an apocalyptic number.

42216574 is a deficient number, since it is larger than the sum of its proper divisors (21669026).

42216574 is a wasteful number, since it uses less digits than its factorization.

42216574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186914.

The product of its digits is 13440, while the sum is 31.

The square root of 42216574 is about 6497.4282604735. The cubic root of 42216574 is about 348.1991142631.

Adding to 42216574 its reverse (47561224), we get a palindrome (89777798).

The spelling of 42216574 in words is "forty-two million, two hundred sixteen thousand, five hundred seventy-four".