64263120 has 40 divisors (see below), whose sum is σ = 199216416. Its totient is φ = 17136768.

The previous prime is 64263097. The next prime is 64263131. The reversal of 64263120 is 2136246.

64263120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 133642 + ... + 134121.

Almost surely, 2^64263120 is an apocalyptic number.

64263120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64263120 is an abundant number, since it is smaller than the sum of its proper divisors (134953296).

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

64263120 is a wasteful number, since it uses less digits than its factorization.

64263120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267779 (or 267773 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 64263120 is about 8016.4281322794. The cubic root of 64263120 is about 400.5474171610.

Adding to 64263120 its reverse (2136246), we get a palindrome (66399366).

The spelling of 64263120 in words is "sixty-four million, two hundred sixty-three thousand, one hundred twenty".