64409080 has 16 divisors (see below), whose sum is σ = 144920520. Its totient is φ = 25763616.

The previous prime is 64409077. The next prime is 64409089. The reversal of 64409080 is 8090446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64409089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805074 + ... + 805153.

Almost surely, 2^64409080 is an apocalyptic number.

It is an amenable number.

64409080 is an abundant number, since it is smaller than the sum of its proper divisors (80511440).

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

64409080 is a wasteful number, since it uses less digits than its factorization.

64409080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610238 (or 1610234 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 64409080 is about 8025.5267739881. The cubic root of 64409080 is about 400.8504405956.

The spelling of 64409080 in words is "sixty-four million, four hundred nine thousand, eighty".