42305768 has 16 divisors (see below), whose sum is σ = 81258660. Its totient is φ = 20636800.

The previous prime is 42305749. The next prime is 42305803. The reversal of 42305768 is 86750324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42016324 + 289444 = 6482^2 + 538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64163 + ... + 64818.

Almost surely, 2^42305768 is an apocalyptic number.

It is an amenable number.

42305768 is a deficient number, since it is larger than the sum of its proper divisors (38952892).

42305768 is a wasteful number, since it uses less digits than its factorization.

42305768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129028 (or 129024 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42305768 is about 6504.2884314889. The cubic root of 42305768 is about 348.4441635584. Note that the first 3 decimals are identical.

The spelling of 42305768 in words is "forty-two million, three hundred five thousand, seven hundred sixty-eight".