42317451 has 24 divisors (see below), whose sum is σ = 68915280. Its totient is φ = 25644960.

The previous prime is 42317441. The next prime is 42317501. The reversal of 42317451 is 15471324.

42317451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42317451 - 2⁵ = 42317419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42317411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3210 + ... + 9743.

It is an arithmetic number, because the mean of its divisors is an integer number (2871470).

Almost surely, 2^42317451 is an apocalyptic number.

42317451 is a deficient number, since it is larger than the sum of its proper divisors (26597829).

42317451 is a wasteful number, since it uses less digits than its factorization.

42317451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984 (or 12967 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 42317451 is about 6505.1864692720. The cubic root of 42317451 is about 348.4762356113.

Adding to 42317451 its reverse (15471324), we get a palindrome (57788775).

The spelling of 42317451 in words is "forty-two million, three hundred seventeen thousand, four hundred fifty-one".