42237321 has 16 divisors (see below), whose sum is σ = 64472064. Its totient is φ = 24094224.

The previous prime is 42237319. The next prime is 42237331. The reversal of 42237321 is 12373224.

It is not a de Polignac number, because 42237321 - 2¹ = 42237319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42237291 and 42237300.

It is not an unprimeable number, because it can be changed into a prime (42237301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14250 + ... + 16956.

It is an arithmetic number, because the mean of its divisors is an integer number (4029504).

Almost surely, 2^42237321 is an apocalyptic number.

It is an amenable number.

42237321 is a deficient number, since it is larger than the sum of its proper divisors (22234743).

42237321 is a wasteful number, since it uses less digits than its factorization.

42237321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460.

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

The square root of 42237321 is about 6499.0246191255. The cubic root of 42237321 is about 348.2561448182.

The spelling of 42237321 in words is "forty-two million, two hundred thirty-seven thousand, three hundred twenty-one".