2943740621 has 8 divisors (see below), whose sum is σ = 3137546304. Its totient is φ = 2752228800.

The previous prime is 2943740617. The next prime is 2943740627. The reversal of 2943740621 is 1260473492.

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 2943740621 - 2² = 2943740617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943740627) 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, 570815 + ... + 575948.

It is an arithmetic number, because the mean of its divisors is an integer number (392193288).

Almost surely, 2^2943740621 is an apocalyptic number.

It is an amenable number.

2943740621 is a deficient number, since it is larger than the sum of its proper divisors (193805683).

2943740621 is a wasteful number, since it uses less digits than its factorization.

2943740621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146931.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2943740621 is about 54256.2496031563. The cubic root of 2943740621 is about 1433.1770562565.

The spelling of 2943740621 in words is "two billion, nine hundred forty-three million, seven hundred forty thousand, six hundred twenty-one".