42361231 has 8 divisors (see below), whose sum is σ = 46577664. Its totient is φ = 38205720.

The previous prime is 42361217. The next prime is 42361247. The reversal of 42361231 is 13216324.

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

It is a cyclic number.

It is not a de Polignac number, because 42361231 - 2¹¹ = 42359183 is a prime.

It is a super-2 number, since 2×42361231² = 3588947783670722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42361201) 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, 13765 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (5822208).

Almost surely, 2^42361231 is an apocalyptic number.

42361231 is a deficient number, since it is larger than the sum of its proper divisors (4216433).

42361231 is a wasteful number, since it uses less digits than its factorization.

42361231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30461.

The product of its digits is 864, while the sum is 22.

The square root of 42361231 is about 6508.5506067019. The cubic root of 42361231 is about 348.5963675432.

Adding to 42361231 its reverse (13216324), we get a palindrome (55577555).

The spelling of 42361231 in words is "forty-two million, three hundred sixty-one thousand, two hundred thirty-one".