42428371 has 4 divisors (see below), whose sum is σ = 42526792. Its totient is φ = 42329952.

The previous prime is 42428369. The next prime is 42428417. The reversal of 42428371 is 17382424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42428371 - 2¹ = 42428369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42428341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48561 + ... + 49426.

It is an arithmetic number, because the mean of its divisors is an integer number (10631698).

Almost surely, 2^42428371 is an apocalyptic number.

42428371 is a deficient number, since it is larger than the sum of its proper divisors (98421).

42428371 is an equidigital number, since it uses as much as digits as its factorization.

42428371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98420.

The product of its digits is 10752, while the sum is 31.

The square root of 42428371 is about 6513.7063949797. The cubic root of 42428371 is about 348.7804384133.

The spelling of 42428371 in words is "forty-two million, four hundred twenty-eight thousand, three hundred seventy-one".