2743386021 has 12 divisors (see below), whose sum is σ = 3964335648. Its totient is φ = 1828154664.

The previous prime is 2743386017. The next prime is 2743386029. The reversal of 2743386021 is 1206833472.

It is a happy number.

2743386021 is a `hidden beast` number, since 2 + 7 + 43 + 3 + 8 + 602 + 1 = 666.

It is not a de Polignac number, because 2743386021 - 2² = 2743386017 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2743386029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41095 + ... + 84708.

It is an arithmetic number, because the mean of its divisors is an integer number (330361304).

Almost surely, 2^2743386021 is an apocalyptic number.

It is an amenable number.

2743386021 is a deficient number, since it is larger than the sum of its proper divisors (1220949627).

2743386021 is a wasteful number, since it uses less digits than its factorization.

2743386021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128232 (or 128229 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2743386021 is about 52377.3426301870. The cubic root of 2743386021 is about 1399.8955740138.

The spelling of 2743386021 in words is "two billion, seven hundred forty-three million, three hundred eighty-six thousand, twenty-one".