64512460 has 24 divisors (see below), whose sum is σ = 139139280. Its totient is φ = 25107264.

The previous prime is 64512449. The next prime is 64512473. The reversal of 64512460 is 6421546.

64512460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42850 + ... + 44329.

It is an arithmetic number, because the mean of its divisors is an integer number (5797470).

Almost surely, 2^64512460 is an apocalyptic number.

It is an amenable number.

64512460 is an abundant number, since it is smaller than the sum of its proper divisors (74626820).

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

64512460 is a wasteful number, since it uses less digits than its factorization.

64512460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87225 (or 87223 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 64512460 is about 8031.9648903615. The cubic root of 64512460 is about 401.0647880510.

It can be divided in two parts, 6451 and 2460, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 64512460 in words is "sixty-four million, five hundred twelve thousand, four hundred sixty".