42428951 has 4 divisors (see below), whose sum is σ = 44273712. Its totient is φ = 40584192.

The previous prime is 42428941. The next prime is 42428959. The reversal of 42428951 is 15982424.

42428951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42428951 - 2⁶ = 42428887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42428959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922346 + ... + 922391.

It is an arithmetic number, because the mean of its divisors is an integer number (11068428).

Almost surely, 2^42428951 is an apocalyptic number.

42428951 is a deficient number, since it is larger than the sum of its proper divisors (1844761).

42428951 is a wasteful number, since it uses less digits than its factorization.

42428951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844760.

The product of its digits is 23040, while the sum is 35.

The square root of 42428951 is about 6513.7509163308. The cubic root of 42428951 is about 348.7820276937.

The spelling of 42428951 in words is "forty-two million, four hundred twenty-eight thousand, nine hundred fifty-one".