64483720 has 256 divisors, whose sum is σ = 199065600. Its totient is φ = 18247680.

The previous prime is 64483717. The next prime is 64483759. The reversal of 64483720 is 2738446.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2080105 + ... + 2080135.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^64483720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64483720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99532800).

64483720 is an abundant number, since it is smaller than the sum of its proper divisors (134581880).

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

64483720 is a wasteful number, since it uses less digits than its factorization.

64483720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 64483720 is about 8030.1755896120. The cubic root of 64483720 is about 401.0052217072.

The spelling of 64483720 in words is "sixty-four million, four hundred eighty-three thousand, seven hundred twenty".