2944738921 has 8 divisors (see below), whose sum is σ = 3234496320. Its totient is φ = 2668458672.

The previous prime is 2944738919. The next prime is 2944738939. The reversal of 2944738921 is 1298374492.

2944738921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2944738921 - 2¹ = 2944738919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2944738961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3368830 + ... + 3369703.

It is an arithmetic number, because the mean of its divisors is an integer number (404312040).

Almost surely, 2^2944738921 is an apocalyptic number.

It is an amenable number.

2944738921 is a deficient number, since it is larger than the sum of its proper divisors (289757399).

2944738921 is a wasteful number, since it uses less digits than its factorization.

2944738921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738575.

The product of its digits is 870912, while the sum is 49.

The square root of 2944738921 is about 54265.4486851440. The cubic root of 2944738921 is about 1433.3390473121.

The spelling of 2944738921 in words is "two billion, nine hundred forty-four million, seven hundred thirty-eight thousand, nine hundred twenty-one".