42231757 has 8 divisors (see below), whose sum is σ = 45044856. Its totient is φ = 39455232.

The previous prime is 42231733. The next prime is 42231767. The reversal of 42231757 is 75713224.

42231757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11162281 + 31069476 = 3341^2 + 5574^2 .

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

It is not a de Polignac number, because 42231757 - 2¹¹ = 42229709 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 (42231767) 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, 6738 + ... + 11395.

It is an arithmetic number, because the mean of its divisors is an integer number (5630607).

Almost surely, 2^42231757 is an apocalyptic number.

It is an amenable number.

42231757 is a deficient number, since it is larger than the sum of its proper divisors (2813099).

42231757 is a wasteful number, since it uses less digits than its factorization.

42231757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18287.

The product of its digits is 11760, while the sum is 31.

The square root of 42231757 is about 6498.5965407925. The cubic root of 42231757 is about 348.2408520058.

The spelling of 42231757 in words is "forty-two million, two hundred thirty-one thousand, seven hundred fifty-seven".