42289488 has 30 divisors (see below), whose sum is σ = 118352234. Its totient is φ = 14096448.

The previous prime is 42289477. The next prime is 42289543. The reversal of 42289488 is 88498224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37307664 + 4981824 = 6108^2 + 2232^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146695 + ... + 146982.

Almost surely, 2^42289488 is an apocalyptic number.

42289488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42289488 is an abundant number, since it is smaller than the sum of its proper divisors (76062746).

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

42289488 is a wasteful number, since it uses less digits than its factorization.

42289488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293691 (or 293682 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 42289488 is about 6503.0368290515. The cubic root of 42289488 is about 348.3994620196.

The spelling of 42289488 in words is "forty-two million, two hundred eighty-nine thousand, four hundred eighty-eight".