42647288 has 16 divisors (see below), whose sum is σ = 84667680. Its totient is φ = 20069248.

The previous prime is 42647279. The next prime is 42647299. The reversal of 42647288 is 88274624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156656 + ... + 156927.

It is an arithmetic number, because the mean of its divisors is an integer number (5291730).

Almost surely, 2^42647288 is an apocalyptic number.

It is an amenable number.

42647288 is a deficient number, since it is larger than the sum of its proper divisors (42020392).

42647288 is a wasteful number, since it uses less digits than its factorization.

42647288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313606 (or 313602 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 42647288 is about 6530.4891087881. The cubic root of 42647288 is about 349.3792753063.

The spelling of 42647288 in words is "forty-two million, six hundred forty-seven thousand, two hundred eighty-eight".