2742081 has 4 divisors (see below), whose sum is σ = 3656112. Its totient is φ = 1828052.

The previous prime is 2742073. The next prime is 2742119. The reversal of 2742081 is 1802472.

2742081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 2742081 - 2³ = 2742073 is a prime.

It is a super-2 number, since 2×2742081² = 15038016421122, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2742031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457011 + ... + 457016.

It is an arithmetic number, because the mean of its divisors is an integer number (914028).

2^2742081 is an apocalyptic number.

It is an amenable number.

2742081 is a deficient number, since it is larger than the sum of its proper divisors (914031).

2742081 is an equidigital number, since it uses as much as digits as its factorization.

2742081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914030.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2742081 is about 1655.9230054565. The cubic root of 2742081 is about 139.9673563347.

The spelling of 2742081 in words is "two million, seven hundred forty-two thousand, eighty-one".