42750751 has 8 divisors (see below), whose sum is σ = 43641360. Its totient is φ = 41865792.

The previous prime is 42750737. The next prime is 42750761. The reversal of 42750751 is 15705724.

42750751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42750751 - 2¹¹ = 42748703 is a prime.

It is a super-3 number, since 3×42750751³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42750731) 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 7 ways as a sum of consecutive naturals, for example, 16051 + ... + 18523.

It is an arithmetic number, because the mean of its divisors is an integer number (5455170).

Almost surely, 2^42750751 is an apocalyptic number.

42750751 is a deficient number, since it is larger than the sum of its proper divisors (890609).

42750751 is a wasteful number, since it uses less digits than its factorization.

42750751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 42750751 is about 6538.4058454642. The cubic root of 42750751 is about 349.6615803660.

The spelling of 42750751 in words is "forty-two million, seven hundred fifty thousand, seven hundred fifty-one".