64286480 has 40 divisors (see below), whose sum is σ = 151162200. Its totient is φ = 25422848.

The previous prime is 64286471. The next prime is 64286507. The reversal of 64286480 is 8468246.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16289296 + 47997184 = 4036^2 + 6928^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2606 + ... + 11634.

It is an arithmetic number, because the mean of its divisors is an integer number (3779055).

Almost surely, 2^64286480 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 64286480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75581100).

64286480 is an abundant number, since it is smaller than the sum of its proper divisors (86875720).

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

64286480 is a wasteful number, since it uses less digits than its factorization.

64286480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9131 (or 9125 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 64286480 is about 8017.8850079058. The cubic root of 64286480 is about 400.5959450162.

The spelling of 64286480 in words is "sixty-four million, two hundred eighty-six thousand, four hundred eighty".