964224644 has 6 divisors (see below), whose sum is σ = 1687393134. Its totient is φ = 482112320.

The previous prime is 964224641. The next prime is 964224689. The reversal of 964224644 is 446422469.

964224644 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 only one way, i.e., 963481600 + 743044 = 31040^2 + 862^2 .

It is a super-3 number, since 3×964224644³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (964224641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120528077 + ... + 120528084.

It is an arithmetic number, because the mean of its divisors is an integer number (281232189).

Almost surely, 2^964224644 is an apocalyptic number.

It is an amenable number.

964224644 is a deficient number, since it is larger than the sum of its proper divisors (723168490).

964224644 is a wasteful number, since it uses less digits than its factorization.

964224644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241056165 (or 241056163 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

The square root of 964224644 is about 31051.9668298161. The cubic root of 964224644 is about 987.9297772269.

The spelling of 964224644 in words is "nine hundred sixty-four million, two hundred twenty-four thousand, six hundred forty-four".