64634120 has 16 divisors (see below), whose sum is σ = 145426860. Its totient is φ = 25853632.

The previous prime is 64634111. The next prime is 64634131. The reversal of 64634120 is 2143646.

64634120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55860676 + 8773444 = 7474^2 + 2962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64634120.

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 3 ways as a sum of consecutive naturals, for example, 807887 + ... + 807966.

Almost surely, 2^64634120 is an apocalyptic number.

It is an amenable number.

64634120 is an abundant number, since it is smaller than the sum of its proper divisors (80792740).

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

64634120 is a wasteful number, since it uses less digits than its factorization.

64634120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615864 (or 1615860 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 64634120 is about 8039.5348124130. The cubic root of 64634120 is about 401.3167440399.

Adding to 64634120 its reverse (2143646), we get a palindrome (66777766).

The spelling of 64634120 in words is "sixty-four million, six hundred thirty-four thousand, one hundred twenty".