2742019 has 4 divisors (see below), whose sum is σ = 3133744. Its totient is φ = 2350296.

The previous prime is 2742017. The next prime is 2742029. The reversal of 2742019 is 9102472.

2742019 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.

It is a cyclic number.

It is not a de Polignac number, because 2742019 - 2¹ = 2742017 is a prime.

It is a super-2 number, since 2×2742019² = 15037336392722, which contains 22 as substring.

It is a Duffinian number.

2742019 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2741984 and 2742002.

It is not an unprimeable number, because it can be changed into a prime (2742013) 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, 195852 + ... + 195865.

It is an arithmetic number, because the mean of its divisors is an integer number (783436).

2^2742019 is an apocalyptic number.

2742019 is a deficient number, since it is larger than the sum of its proper divisors (391725).

2742019 is an equidigital number, since it uses as much as digits as its factorization.

2742019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391724.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2742019 is about 1655.9042846735. The cubic root of 2742019 is about 139.9663014131.

The spelling of 2742019 in words is "two million, seven hundred forty-two thousand, nineteen".