42604064 has 12 divisors (see below), whose sum is σ = 83876814. Its totient is φ = 21302016.

The previous prime is 42604063. The next prime is 42604069. The reversal of 42604064 is 46040624.

It can be written as a sum of positive squares in only one way, i.e., 42354064 + 250000 = 6508^2 + 500^2 .

It is not an unprimeable number, because it can be changed into a prime (42604063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665657 + ... + 665720.

Almost surely, 2^42604064 is an apocalyptic number.

It is an amenable number.

42604064 is a deficient number, since it is larger than the sum of its proper divisors (41272750).

42604064 is a wasteful number, since it uses less digits than its factorization.

42604064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331387 (or 1331379 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 42604064 is about 6527.1788699254. The cubic root of 42604064 is about 349.2612007830.

Adding to 42604064 its reverse (46040624), we get a palindrome (88644688).

The spelling of 42604064 in words is "forty-two million, six hundred four thousand, sixty-four".