64804080 has 80 divisors (see below), whose sum is σ = 219164544. Its totient is φ = 15709440.

The previous prime is 64804063. The next prime is 64804081. The reversal of 64804080 is 8040846.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64804081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9634 + ... + 14913.

Almost surely, 2^64804080 is an apocalyptic number.

64804080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64804080 is an abundant number, since it is smaller than the sum of its proper divisors (154360464).

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

64804080 is a wasteful number, since it uses less digits than its factorization.

64804080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24574 (or 24568 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 64804080 is about 8050.0981360478. The cubic root of 64804080 is about 401.6681997688.

The spelling of 64804080 in words is "sixty-four million, eight hundred four thousand, eighty".