42508064 has 24 divisors (see below), whose sum is σ = 84230748. Its totient is φ = 21116160.

The previous prime is 42508051. The next prime is 42508097. The reversal of 42508064 is 46080524.

It can be written as a sum of positive squares in 2 ways, for example, as 42250000 + 258064 = 6500^2 + 508^2 .

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, 794 + ... + 9254.

Almost surely, 2^42508064 is an apocalyptic number.

It is an amenable number.

42508064 is a deficient number, since it is larger than the sum of its proper divisors (41722684).

42508064 is a wasteful number, since it uses less digits than its factorization.

42508064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628 (or 8620 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 42508064 is about 6519.8208564346. The cubic root of 42508064 is about 348.9986726933.

Adding to 42508064 its reverse (46080524), we get a palindrome (88588588).

The spelling of 42508064 in words is "forty-two million, five hundred eight thousand, sixty-four".