42795831 has 16 divisors (see below), whose sum is σ = 62461280. Its totient is φ = 25902720.

The previous prime is 42795829. The next prime is 42795833. The reversal of 42795831 is 13859724.

It is an interprime number because it is at equal distance from previous prime (42795829) and next prime (42795833).

It is not a de Polignac number, because 42795831 - 2¹ = 42795829 is a prime.

It is a super-2 number, since 2×42795831² = 3662966301961122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 42795831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42795833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6616 + ... + 11373.

It is an arithmetic number, because the mean of its divisors is an integer number (3903830).

Almost surely, 2^42795831 is an apocalyptic number.

42795831 is a deficient number, since it is larger than the sum of its proper divisors (19665449).

42795831 is a wasteful number, since it uses less digits than its factorization.

42795831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18066.

The product of its digits is 60480, while the sum is 39.

The square root of 42795831 is about 6541.8522606369. The cubic root of 42795831 is about 349.7844414183.

The spelling of 42795831 in words is "forty-two million, seven hundred ninety-five thousand, eight hundred thirty-one".