2940727421 has 4 divisors (see below), whose sum is σ = 2940853344. Its totient is φ = 2940601500.

The previous prime is 2940727393. The next prime is 2940727441. The reversal of 2940727421 is 1247270492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2940727421 - 2⁶ = 2940727357 is a prime.

It is a super-2 number, since 2×2940727421² = 17295755529242622482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2940727441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16505 + ... + 78446.

It is an arithmetic number, because the mean of its divisors is an integer number (735213336).

Almost surely, 2^2940727421 is an apocalyptic number.

It is an amenable number.

2940727421 is a deficient number, since it is larger than the sum of its proper divisors (125923).

2940727421 is an equidigital number, since it uses as much as digits as its factorization.

2940727421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125922.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2940727421 is about 54228.4742639879. The cubic root of 2940727421 is about 1432.6878913980.

The spelling of 2940727421 in words is "two billion, nine hundred forty million, seven hundred twenty-seven thousand, four hundred twenty-one".