2644532990 has 16 divisors (see below), whose sum is σ = 5192901360. Its totient is φ = 961648320.

The previous prime is 2644532983. The next prime is 2644532999. The reversal of 2644532990 is 992354462.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644532999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12020495 + ... + 12020714.

It is an arithmetic number, because the mean of its divisors is an integer number (324556335).

Almost surely, 2^2644532990 is an apocalyptic number.

2644532990 is a deficient number, since it is larger than the sum of its proper divisors (2548368370).

2644532990 is a wasteful number, since it uses less digits than its factorization.

2644532990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24041227.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 2644532990 is about 51425.0229946473. The cubic root of 2644532990 is about 1382.8752259965.

The spelling of 2644532990 in words is "two billion, six hundred forty-four million, five hundred thirty-two thousand, nine hundred ninety".