64261330 has 16 divisors (see below), whose sum is σ = 132194880. Its totient is φ = 22032432.

The previous prime is 64261291. The next prime is 64261331. The reversal of 64261330 is 3316246.

64261330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64261295 and 64261304.

It is not an unprimeable number, because it can be changed into a prime (64261331) by changing a digit.

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, 458940 + ... + 459079.

It is an arithmetic number, because the mean of its divisors is an integer number (8262180).

Almost surely, 2^64261330 is an apocalyptic number.

64261330 is an abundant number, since it is smaller than the sum of its proper divisors (67933550).

64261330 is a wasteful number, since it uses less digits than its factorization.

64261330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918033.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 64261330 is about 8016.3164857683. The cubic root of 64261330 is about 400.5436981460.

Adding to 64261330 its reverse (3316246), we get a palindrome (67577576).

The spelling of 64261330 in words is "sixty-four million, two hundred sixty-one thousand, three hundred thirty".