42030751 has 4 divisors (see below), whose sum is σ = 48035152. Its totient is φ = 36026352.

The previous prime is 42030743. The next prime is 42030757. The reversal of 42030751 is 15703024.

42030751 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 42030751 - 2³ = 42030743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030757) 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, 3002190 + ... + 3002203.

It is an arithmetic number, because the mean of its divisors is an integer number (12008788).

Almost surely, 2^42030751 is an apocalyptic number.

42030751 is a deficient number, since it is larger than the sum of its proper divisors (6004401).

42030751 is an equidigital number, since it uses as much as digits as its factorization.

42030751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004400.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 42030751 is about 6483.1127554594. The cubic root of 42030751 is about 347.6874781542.

Adding to 42030751 its reverse (15703024), we get a palindrome (57733775).

The spelling of 42030751 in words is "forty-two million, thirty thousand, seven hundred fifty-one".