42859388 has 24 divisors (see below), whose sum is σ = 88117680. Its totient is φ = 17982720.

The previous prime is 42859367. The next prime is 42859423. The reversal of 42859388 is 88395824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36893 + ... + 38036.

It is an arithmetic number, because the mean of its divisors is an integer number (3671570).

Almost surely, 2^42859388 is an apocalyptic number.

It is an amenable number.

42859388 is an abundant number, since it is smaller than the sum of its proper divisors (45258292).

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

42859388 is a wasteful number, since it uses less digits than its factorization.

42859388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74957 (or 74955 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 42859388 is about 6546.7081804522. The cubic root of 42859388 is about 349.9575132100.

The spelling of 42859388 in words is "forty-two million, eight hundred fifty-nine thousand, three hundred eighty-eight".