64040604 has 12 divisors (see below), whose sum is σ = 149428104. Its totient is φ = 21346864.

The previous prime is 64040597. The next prime is 64040623. The reversal of 64040604 is 40604046.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2668347 + ... + 2668370.

It is an arithmetic number, because the mean of its divisors is an integer number (12452342).

Almost surely, 2^64040604 is an apocalyptic number.

It is an amenable number.

64040604 is an abundant number, since it is smaller than the sum of its proper divisors (85387500).

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

64040604 is a wasteful number, since it uses less digits than its factorization.

64040604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336724 (or 5336722 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64040604 is about 8002.5373476167. The cubic root of 64040604 is about 400.0845737836.

The spelling of 64040604 in words is "sixty-four million, forty thousand, six hundred four".