42454237 has 12 divisors (see below), whose sum is σ = 50085216. Its totient is φ = 35873880.

The previous prime is 42454177. The next prime is 42454267. The reversal of 42454237 is 73245424.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-42454237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42454199 and 42454208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42454267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2623 + ... + 9580.

It is an arithmetic number, because the mean of its divisors is an integer number (4173768).

Almost surely, 2^42454237 is an apocalyptic number.

It is an amenable number.

42454237 is a deficient number, since it is larger than the sum of its proper divisors (7630979).

42454237 is a wasteful number, since it uses less digits than its factorization.

42454237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12288 (or 12281 counting only the distinct ones).

The product of its digits is 26880, while the sum is 31.

The square root of 42454237 is about 6515.6915979810. The cubic root of 42454237 is about 348.8513007627.

The spelling of 42454237 in words is "forty-two million, four hundred fifty-four thousand, two hundred thirty-seven".