2740042 has 8 divisors (see below), whose sum is σ = 4148100. Its totient is φ = 1357344.

The previous prime is 2740039. The next prime is 2740051. The reversal of 2740042 is 2400472.

It can be written as a sum of positive squares in 2 ways, for example, as 2223081 + 516961 = 1491^2 + 719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6067 + ... + 6502.

2^2740042 is an apocalyptic number.

2740042 is a deficient number, since it is larger than the sum of its proper divisors (1408058).

2740042 is a wasteful number, since it uses less digits than its factorization.

2740042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12680.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 2740042 is about 1655.3072222400. The cubic root of 2740042 is about 139.9326546844.

The spelling of 2740042 in words is "two million, seven hundred forty thousand, forty-two".