42507427 has 16 divisors (see below), whose sum is σ = 47013120. Its totient is φ = 38253600.

The previous prime is 42507419. The next prime is 42507433. The reversal of 42507427 is 72470524.

It is not a de Polignac number, because 42507427 - 2³ = 42507419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42507407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91977 + ... + 92437.

It is an arithmetic number, because the mean of its divisors is an integer number (2938320).

Almost surely, 2^42507427 is an apocalyptic number.

42507427 is a deficient number, since it is larger than the sum of its proper divisors (4505693).

42507427 is a wasteful number, since it uses less digits than its factorization.

42507427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 42507427 is about 6519.7720052161. The cubic root of 42507427 is about 348.9969293906.

The spelling of 42507427 in words is "forty-two million, five hundred seven thousand, four hundred twenty-seven".