42454231 has 16 divisors (see below), whose sum is σ = 45264960. Its totient is φ = 39755520.

The previous prime is 42454177. The next prime is 42454267. The reversal of 42454231 is 13245424.

It is a happy number.

It is not a de Polignac number, because 42454231 - 2¹³ = 42446039 is a prime.

It is a super-2 number, since 2×42454231² = 3604723459602722, 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 = 42454196 and 42454205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42452231) 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, 182091 + ... + 182323.

It is an arithmetic number, because the mean of its divisors is an integer number (2829060).

Almost surely, 2^42454231 is an apocalyptic number.

42454231 is a deficient number, since it is larger than the sum of its proper divisors (2810729).

42454231 is a wasteful number, since it uses less digits than its factorization.

42454231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its digits is 3840, while the sum is 25.

The square root of 42454231 is about 6515.6911375540. The cubic root of 42454231 is about 348.8512843285.

Adding to 42454231 its reverse (13245424), we get a palindrome (55699655).

It can be divided in two parts, 4245423 and 1, that added together give a palindrome (4245424).

The spelling of 42454231 in words is "forty-two million, four hundred fifty-four thousand, two hundred thirty-one".