42575690 has 8 divisors (see below), whose sum is σ = 76636260. Its totient is φ = 17030272.

The previous prime is 42575677. The next prime is 42575711. The reversal of 42575690 is 9657524.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38800441 + 3775249 = 6229^2 + 1943^2 .

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

It is a super-2 number, since 2×42575690² = 3625378757952200, which contains 22 as substring.

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, 2128775 + ... + 2128794.

Almost surely, 2^42575690 is an apocalyptic number.

42575690 is a deficient number, since it is larger than the sum of its proper divisors (34060570).

42575690 is a wasteful number, since it uses less digits than its factorization.

42575690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257576.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 42575690 is about 6525.0049808410. The cubic root of 42575690 is about 349.1836484153.

The spelling of 42575690 in words is "forty-two million, five hundred seventy-five thousand, six hundred ninety".