42957761 has 12 divisors (see below), whose sum is σ = 54514800. Its totient is φ = 33473160.

The previous prime is 42957757. The next prime is 42957763. The reversal of 42957761 is 16775924.

It is not a de Polignac number, because 42957761 - 2² = 42957757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42957763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39311 + ... + 40388.

It is an arithmetic number, because the mean of its divisors is an integer number (4542900).

Almost surely, 2^42957761 is an apocalyptic number.

It is an amenable number.

42957761 is a deficient number, since it is larger than the sum of its proper divisors (11557039).

42957761 is a wasteful number, since it uses less digits than its factorization.

42957761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79724 (or 79717 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 42957761 is about 6554.2170394335. The cubic root of 42957761 is about 350.2250552551.

The spelling of 42957761 in words is "forty-two million, nine hundred fifty-seven thousand, seven hundred sixty-one".