42428706 has 8 divisors (see below), whose sum is σ = 84857424. Its totient is φ = 14142900.

The previous prime is 42428699. The next prime is 42428707. The reversal of 42428706 is 60782424.

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

42428706 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42428707) 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 3 ways as a sum of consecutive naturals, for example, 3535720 + ... + 3535731.

It is an arithmetic number, because the mean of its divisors is an integer number (10607178).

Almost surely, 2^42428706 is an apocalyptic number.

42428706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42428706 is a wasteful number, since it uses less digits than its factorization.

42428706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071456.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 42428706 is about 6513.7321099351. The cubic root of 42428706 is about 348.7813563615.

It can be divided in two parts, 42428 and 706, that added together give a palindrome (43134).

The spelling of 42428706 in words is "forty-two million, four hundred twenty-eight thousand, seven hundred six".