42897584 has 20 divisors (see below), whose sum is σ = 83894184. Its totient is φ = 21247488.

The previous prime is 42897559. The next prime is 42897587. The reversal of 42897584 is 48579824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42897587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10817 + ... + 14240.

Almost surely, 2^42897584 is an apocalyptic number.

It is an amenable number.

42897584 is a deficient number, since it is larger than the sum of its proper divisors (40996600).

42897584 is a wasteful number, since it uses less digits than its factorization.

42897584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25172 (or 25166 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 42897584 is about 6549.6247220738. The cubic root of 42897584 is about 350.0614422744.

The spelling of 42897584 in words is "forty-two million, eight hundred ninety-seven thousand, five hundred eighty-four".