42828775 has 12 divisors (see below), whose sum is σ = 57936024. Its totient is φ = 31148000.

The previous prime is 42828769. The next prime is 42828781. The reversal of 42828775 is 57782824.

It is an interprime number because it is at equal distance from previous prime (42828769) and next prime (42828781).

It is not a de Polignac number, because 42828775 - 2³ = 42828767 is a prime.

It is a Duffinian number.

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, 77596 + ... + 78145.

It is an arithmetic number, because the mean of its divisors is an integer number (4828002).

Almost surely, 2^42828775 is an apocalyptic number.

42828775 is a deficient number, since it is larger than the sum of its proper divisors (15107249).

42828775 is a wasteful number, since it uses less digits than its factorization.

42828775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155762 (or 155757 counting only the distinct ones).

The product of its digits is 250880, while the sum is 43.

The square root of 42828775 is about 6544.3697175511. The cubic root of 42828775 is about 349.8741724566.

The spelling of 42828775 in words is "forty-two million, eight hundred twenty-eight thousand, seven hundred seventy-five".