42428374 has 4 divisors (see below), whose sum is σ = 63642564. Its totient is φ = 21214186.

The previous prime is 42428369. The next prime is 42428417. The reversal of 42428374 is 47382424.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607092 + ... + 10607095.

It is an arithmetic number, because the mean of its divisors is an integer number (15910641).

Almost surely, 2^42428374 is an apocalyptic number.

42428374 is a deficient number, since it is larger than the sum of its proper divisors (21214190).

42428374 is a wasteful number, since it uses less digits than its factorization.

42428374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21214189.

The product of its digits is 43008, while the sum is 34.

The square root of 42428374 is about 6513.7066252634. The cubic root of 42428374 is about 348.7804466338.

The spelling of 42428374 in words is "forty-two million, four hundred twenty-eight thousand, three hundred seventy-four".