42775706 has 8 divisors (see below), whose sum is σ = 67937940. Its totient is φ = 20129728.

The previous prime is 42775697. The next prime is 42775709. The reversal of 42775706 is 60757724.

It can be written as a sum of positive squares in 2 ways, for example, as 35295481 + 7480225 = 5941^2 + 2735^2 .

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

It is a super-2 number, since 2×42775706² = 3659522047596872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42775706.

It is not an unprimeable number, because it can be changed into a prime (42775709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629021 + ... + 629088.

Almost surely, 2^42775706 is an apocalyptic number.

42775706 is a deficient number, since it is larger than the sum of its proper divisors (25162234).

42775706 is a wasteful number, since it uses less digits than its factorization.

42775706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258128.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 42775706 is about 6540.3139068396. The cubic root of 42775706 is about 349.7296034006.

The spelling of 42775706 in words is "forty-two million, seven hundred seventy-five thousand, seven hundred six".