42765849 has 12 divisors (see below), whose sum is σ = 70597696. Its totient is φ = 24437592.

The previous prime is 42765847. The next prime is 42765851. The reversal of 42765849 is 94856724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42765847) and next prime (42765851).

It is not a de Polignac number, because 42765849 - 2¹ = 42765847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42765847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339349 + ... + 339474.

Almost surely, 2^42765849 is an apocalyptic number.

It is an amenable number.

42765849 is a deficient number, since it is larger than the sum of its proper divisors (27831847).

42765849 is a wasteful number, since it uses less digits than its factorization.

42765849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678836 (or 678833 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 42765849 is about 6539.5603063203. The cubic root of 42765849 is about 349.7027380772.

The spelling of 42765849 in words is "forty-two million, seven hundred sixty-five thousand, eight hundred forty-nine".