2944321380 has 576 divisors, whose sum is σ = 12395980800. Its totient is φ = 563397120.

The previous prime is 2944321351. The next prime is 2944321381. The reversal of 2944321380 is 831234492.

2944321380 is a `hidden beast` number, since 2 + 94 + 432 + 138 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2944321381) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7026811 + ... + 7027229.

It is an arithmetic number, because the mean of its divisors is an integer number (21520800).

Almost surely, 2^2944321380 is an apocalyptic number.

2944321380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2944321380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6197990400).

2944321380 is an abundant number, since it is smaller than the sum of its proper divisors (9451659420).

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

2944321380 is a wasteful number, since it uses less digits than its factorization.

2944321380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2944321380 is about 54261.6013401743. The cubic root of 2944321380 is about 1433.2712986793.

The spelling of 2944321380 in words is "two billion, nine hundred forty-four million, three hundred twenty-one thousand, three hundred eighty".