42337221 has 8 divisors (see below), whose sum is σ = 57130080. Its totient is φ = 27884592.

The previous prime is 42337199. The next prime is 42337231. The reversal of 42337221 is 12273324.

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

It is not a de Polignac number, because 42337221 - 2⁵ = 42337189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42337191 and 42337200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42337231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84766 + ... + 85263.

It is an arithmetic number, because the mean of its divisors is an integer number (7141260).

Almost surely, 2^42337221 is an apocalyptic number.

It is an amenable number.

42337221 is a deficient number, since it is larger than the sum of its proper divisors (14792859).

42337221 is a wasteful number, since it uses less digits than its factorization.

42337221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170115.

The product of its digits is 2016, while the sum is 24.

The square root of 42337221 is about 6506.7058485842. The cubic root of 42337221 is about 348.5304945709.

The spelling of 42337221 in words is "forty-two million, three hundred thirty-seven thousand, two hundred twenty-one".