64486448 has 80 divisors (see below), whose sum is σ = 141824256. Its totient is φ = 28200960.

The previous prime is 64486447. The next prime is 64486489. The reversal of 64486448 is 84468446.

Its product of digits (589824) is a multiple of the sum of its prime divisors (256).

It is a junction number, because it is equal to n+sod(n) for n = 64486399 and 64486408.

It is not an unprimeable number, because it can be changed into a prime (64486441) 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, 470636 + ... + 470772.

Almost surely, 2^64486448 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 64486448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70912128).

64486448 is an abundant number, since it is smaller than the sum of its proper divisors (77337808).

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

64486448 is a wasteful number, since it uses less digits than its factorization.

64486448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 256 counting only the distinct ones).

The product of its digits is 589824, while the sum is 44.

The square root of 64486448 is about 8030.3454471150. The cubic root of 64486448 is about 401.0108765030.

The spelling of 64486448 in words is "sixty-four million, four hundred eighty-six thousand, four hundred forty-eight".