2644545332 has 24 divisors (see below), whose sum is σ = 5437038432. Its totient is φ = 1109599200.

The previous prime is 2644545227. The next prime is 2644545341. The reversal of 2644545332 is 2335454462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2311094 + ... + 2312237.

It is an arithmetic number, because the mean of its divisors is an integer number (226543268).

Almost surely, 2^2644545332 is an apocalyptic number.

2644545332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2644545332 is an abundant number, since it is smaller than the sum of its proper divisors (2792493100).

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

2644545332 is a wasteful number, since it uses less digits than its factorization.

2644545332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623359 (or 4623357 counting only the distinct ones).

The product of its digits is 345600, while the sum is 38.

The square root of 2644545332 is about 51425.1429944536. The cubic root of 2644545332 is about 1382.8773772799.

Adding to 2644545332 its reverse (2335454462), we get a palindrome (4979999794).

The spelling of 2644545332 in words is "two billion, six hundred forty-four million, five hundred forty-five thousand, three hundred thirty-two".