42027775 has 12 divisors (see below), whose sum is σ = 52265752. Its totient is φ = 33524640.

The previous prime is 42027767. The next prime is 42027803. The reversal of 42027775 is 57772024.

It is not a de Polignac number, because 42027775 - 2³ = 42027767 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42027775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7072 + ... + 11578.

Almost surely, 2^42027775 is an apocalyptic number.

42027775 is a deficient number, since it is larger than the sum of its proper divisors (10237977).

42027775 is a wasteful number, since it uses less digits than its factorization.

42027775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4890 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 42027775 is about 6482.8832320195. The cubic root of 42027775 is about 347.6792719216.

Adding to 42027775 its reverse (57772024), we get a palindrome (99799799).

The spelling of 42027775 in words is "forty-two million, twenty-seven thousand, seven hundred seventy-five".