42304281 has 8 divisors (see below), whose sum is σ = 57039840. Its totient is φ = 27885792.

The previous prime is 42304267. The next prime is 42304307. The reversal of 42304281 is 18240324.

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

It is not a de Polignac number, because 42304281 - 2¹⁴ = 42287897 is a prime.

It is a super-2 number, since 2×42304281² = 3579304381853922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42304231) 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, 78955 + ... + 79488.

It is an arithmetic number, because the mean of its divisors is an integer number (7129980).

Almost surely, 2^42304281 is an apocalyptic number.

It is an amenable number.

42304281 is a deficient number, since it is larger than the sum of its proper divisors (14735559).

42304281 is a wasteful number, since it uses less digits than its factorization.

42304281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158535.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 42304281 is about 6504.1741212855. The cubic root of 42304281 is about 348.4400810375.

The spelling of 42304281 in words is "forty-two million, three hundred four thousand, two hundred eighty-one".