64468520 has 32 divisors (see below), whose sum is σ = 152690400. Its totient is φ = 24429888.

The previous prime is 64468519. The next prime is 64468529. The reversal of 64468520 is 2586446.

It is not an unprimeable number, because it can be changed into a prime (64468529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41654 + ... + 43173.

It is an arithmetic number, because the mean of its divisors is an integer number (4771575).

Almost surely, 2^64468520 is an apocalyptic number.

It is an amenable number.

64468520 is an abundant number, since it is smaller than the sum of its proper divisors (88221880).

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

64468520 is a wasteful number, since it uses less digits than its factorization.

64468520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84857 (or 84853 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 64468520 is about 8029.2291037185. The cubic root of 64468520 is about 400.9737111266.

The spelling of 64468520 in words is "sixty-four million, four hundred sixty-eight thousand, five hundred twenty".