42331751 has 32 divisors (see below), whose sum is σ = 56775168. Its totient is φ = 30551040.

The previous prime is 42331747. The next prime is 42331759. The reversal of 42331751 is 15713324.

It is not a de Polignac number, because 42331751 - 2² = 42331747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42331751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42331759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95336 + ... + 95778.

It is an arithmetic number, because the mean of its divisors is an integer number (1774224).

Almost surely, 2^42331751 is an apocalyptic number.

42331751 is a deficient number, since it is larger than the sum of its proper divisors (14443417).

42331751 is a wasteful number, since it uses less digits than its factorization.

42331751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its digits is 2520, while the sum is 26.

The square root of 42331751 is about 6506.2854994228. The cubic root of 42331751 is about 348.5154837926.

The spelling of 42331751 in words is "forty-two million, three hundred thirty-one thousand, seven hundred fifty-one".