42354231 has 4 divisors (see below), whose sum is σ = 56472312. Its totient is φ = 28236152.

The previous prime is 42354229. The next prime is 42354283. The reversal of 42354231 is 13245324.

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

It is a cyclic number.

It is not a de Polignac number, because 42354231 - 2¹ = 42354229 is a prime.

It is a super-2 number, since 2×42354231² = 3587761767202722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42354031) 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, 7059036 + ... + 7059041.

It is an arithmetic number, because the mean of its divisors is an integer number (14118078).

Almost surely, 2^42354231 is an apocalyptic number.

42354231 is a deficient number, since it is larger than the sum of its proper divisors (14118081).

42354231 is a wasteful number, since it uses less digits than its factorization.

42354231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14118080.

The product of its digits is 2880, while the sum is 24.

The square root of 42354231 is about 6508.0128303500. The cubic root of 42354231 is about 348.5771651661.

Adding to 42354231 its reverse (13245324), we get a palindrome (55599555).

The spelling of 42354231 in words is "forty-two million, three hundred fifty-four thousand, two hundred thirty-one".