42253878 has 16 divisors (see below), whose sum is σ = 84588336. Its totient is φ = 14071200.

The previous prime is 42253873. The next prime is 42253909. The reversal of 42253878 is 87835224.

42253878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42253873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5100 + ... + 10512.

It is an arithmetic number, because the mean of its divisors is an integer number (5286771).

Almost surely, 2^42253878 is an apocalyptic number.

42253878 is an abundant number, since it is smaller than the sum of its proper divisors (42334458).

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

42253878 is a wasteful number, since it uses less digits than its factorization.

42253878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719.

The product of its digits is 107520, while the sum is 39.

The square root of 42253878 is about 6500.2983008474. The cubic root of 42253878 is about 348.3016442610.

The spelling of 42253878 in words is "forty-two million, two hundred fifty-three thousand, eight hundred seventy-eight".