42775908 has 48 divisors (see below), whose sum is σ = 117755904. Its totient is φ = 11826720.

The previous prime is 42775907. The next prime is 42775913. The reversal of 42775908 is 80957724.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 42775908.

It is not an unprimeable number, because it can be changed into a prime (42775903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5610 + ... + 10817.

It is an arithmetic number, because the mean of its divisors is an integer number (2453248).

Almost surely, 2^42775908 is an apocalyptic number.

It is an amenable number.

42775908 is an abundant number, since it is smaller than the sum of its proper divisors (74979996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42775908 is a wasteful number, since it uses less digits than its factorization.

42775908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16472 (or 16470 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 42775908 is about 6540.3293495053. The cubic root of 42775908 is about 349.7301539099.

The spelling of 42775908 in words is "forty-two million, seven hundred seventy-five thousand, nine hundred eight".