2144949736 has 64 divisors (see below), whose sum is σ = 4293273600. Its totient is φ = 1002855168.

The previous prime is 2144949733. The next prime is 2144949743. The reversal of 2144949736 is 6379494412.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2144949736.

It is not an unprimeable number, because it can be changed into a prime (2144949733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1266106 + ... + 1267798.

It is an arithmetic number, because the mean of its divisors is an integer number (67082400).

Almost surely, 2^2144949736 is an apocalyptic number.

It is an amenable number.

2144949736 is an abundant number, since it is smaller than the sum of its proper divisors (2148323864).

2144949736 is a wasteful number, since it uses less digits than its factorization.

2144949736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1894 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 2144949736 is about 46313.6020624611. The cubic root of 2144949736 is about 1289.6515165488.

The spelling of 2144949736 in words is "two billion, one hundred forty-four million, nine hundred forty-nine thousand, seven hundred thirty-six".