42352237 has 4 divisors (see below), whose sum is σ = 42788956. Its totient is φ = 41915520.

The previous prime is 42352213. The next prime is 42352259. The reversal of 42352237 is 73225324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8874441 + 33477796 = 2979^2 + 5786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42352237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42352537) 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, 218214 + ... + 218407.

It is an arithmetic number, because the mean of its divisors is an integer number (10697239).

Almost surely, 2^42352237 is an apocalyptic number.

It is an amenable number.

42352237 is a deficient number, since it is larger than the sum of its proper divisors (436719).

42352237 is an equidigital number, since it uses as much as digits as its factorization.

42352237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436718.

The product of its digits is 10080, while the sum is 28.

The square root of 42352237 is about 6507.8596327825. The cubic root of 42352237 is about 348.5716948447.

The spelling of 42352237 in words is "forty-two million, three hundred fifty-two thousand, two hundred thirty-seven".