64042008 has 32 divisors (see below), whose sum is σ = 168532800. Its totient is φ = 20223648.

The previous prime is 64042003. The next prime is 64042021. The reversal of 64042008 is 80024046.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64042003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69766 + ... + 70677.

It is an arithmetic number, because the mean of its divisors is an integer number (5266650).

Almost surely, 2^64042008 is an apocalyptic number.

It is an amenable number.

64042008 is an abundant number, since it is smaller than the sum of its proper divisors (104490792).

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

64042008 is a wasteful number, since it uses less digits than its factorization.

64042008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140471 (or 140467 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 64042008 is about 8002.6250693132. The cubic root of 64042008 is about 400.0874975257.

The spelling of 64042008 in words is "sixty-four million, forty-two thousand, eight".