42355237 has 8 divisors (see below), whose sum is σ = 44654400. Its totient is φ = 40063104.

The previous prime is 42355219. The next prime is 42355241. The reversal of 42355237 is 73255324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42355237 is a prime.

It is a super-2 number, since 2×42355237² = 3587932202652338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42355199 and 42355208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42355277) 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, 14613 + ... + 17269.

It is an arithmetic number, because the mean of its divisors is an integer number (5581800).

Almost surely, 2^42355237 is an apocalyptic number.

42355237 is the 5314-th pentagonal number.

It is an amenable number.

42355237 is a deficient number, since it is larger than the sum of its proper divisors (2299163).

42355237 is a wasteful number, since it uses less digits than its factorization.

42355237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515.

The product of its digits is 25200, while the sum is 31.

The square root of 42355237 is about 6508.0901192285. The cubic root of 42355237 is about 348.5799249522.

The spelling of 42355237 in words is "forty-two million, three hundred fifty-five thousand, two hundred thirty-seven".