64880260 has 12 divisors (see below), whose sum is σ = 136248588. Its totient is φ = 25952096.

The previous prime is 64880227. The next prime is 64880273. The reversal of 64880260 is 6208846.

It can be written as a sum of positive squares in 2 ways, for example, as 28132416 + 36747844 = 5304^2 + 6062^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621987 + ... + 1622026.

It is an arithmetic number, because the mean of its divisors is an integer number (11354049).

Almost surely, 2^64880260 is an apocalyptic number.

It is an amenable number.

64880260 is an abundant number, since it is smaller than the sum of its proper divisors (71368328).

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

64880260 is a wasteful number, since it uses less digits than its factorization.

64880260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3244022 (or 3244020 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 64880260 is about 8054.8283656450. The cubic root of 64880260 is about 401.8255309178.

It can be divided in two parts, 648 and 80260, that added together give a palindrome (80908).

The spelling of 64880260 in words is "sixty-four million, eight hundred eighty thousand, two hundred sixty".