42788886 has 32 divisors (see below), whose sum is σ = 98910720. Its totient is φ = 12086976.

The previous prime is 42788873. The next prime is 42788899. The reversal of 42788886 is 68888724.

It is an interprime number because it is at equal distance from previous prime (42788873) and next prime (42788899).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1986 + ... + 9461.

It is an arithmetic number, because the mean of its divisors is an integer number (3090960).

Almost surely, 2^42788886 is an apocalyptic number.

42788886 is an abundant number, since it is smaller than the sum of its proper divisors (56121834).

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

42788886 is a wasteful number, since it uses less digits than its factorization.

42788886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11548.

The product of its digits is 1376256, while the sum is 51.

The square root of 42788886 is about 6541.3214261340. The cubic root of 42788886 is about 349.7655191362.

The spelling of 42788886 in words is "forty-two million, seven hundred eighty-eight thousand, eight hundred eighty-six".