64448760 has 128 divisors (see below), whose sum is σ = 212544000. Its totient is φ = 15561216.

The previous prime is 64448749. The next prime is 64448777. The reversal of 64448760 is 6784446.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51826 + ... + 53054.

It is an arithmetic number, because the mean of its divisors is an integer number (1660500).

Almost surely, 2^64448760 is an apocalyptic number.

64448760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

64448760 is the 6555-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64448760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106272000).

64448760 is an abundant number, since it is smaller than the sum of its proper divisors (148095240).

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

64448760 is a wasteful number, since it uses less digits than its factorization.

64448760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 64448760 is about 8027.9985052315. The cubic root of 64448760 is about 400.9327399665.

The spelling of 64448760 in words is "sixty-four million, four hundred forty-eight thousand, seven hundred sixty".