42660075 has 24 divisors (see below), whose sum is σ = 72442288. Its totient is φ = 22135680.

The previous prime is 42660053. The next prime is 42660083. The reversal of 42660075 is 57006624.

It is not a de Polignac number, because 42660075 - 2⁹ = 42659563 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4912 + ... + 10461.

Almost surely, 2^42660075 is an apocalyptic number.

42660075 is a deficient number, since it is larger than the sum of its proper divisors (29782213).

42660075 is a wasteful number, since it uses less digits than its factorization.

42660075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15423 (or 15418 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 42660075 is about 6531.4680585608. The cubic root of 42660075 is about 349.4141901202.

Adding to 42660075 its reverse (57006624), we get a palindrome (99666699).

The spelling of 42660075 in words is "forty-two million, six hundred sixty thousand, seventy-five".