42159888 has 30 divisors (see below), whose sum is σ = 117989534. Its totient is φ = 14053248.

The previous prime is 42159877. The next prime is 42159889. The reversal of 42159888 is 88895124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40602384 + 1557504 = 6372^2 + 1248^2 .

It is not an unprimeable number, because it can be changed into a prime (42159889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146245 + ... + 146532.

Almost surely, 2^42159888 is an apocalyptic number.

42159888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42159888 is an abundant number, since it is smaller than the sum of its proper divisors (75829646).

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

42159888 is a wasteful number, since it uses less digits than its factorization.

42159888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292791 (or 292782 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 42159888 is about 6493.0646077180. The cubic root of 42159888 is about 348.0431971744.

The spelling of 42159888 in words is "forty-two million, one hundred fifty-nine thousand, eight hundred eighty-eight".