2742838 has 16 divisors (see below), whose sum is σ = 4748544. Its totient is φ = 1163880.

The previous prime is 2742811. The next prime is 2742853. The reversal of 2742838 is 8382472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583 + ... + 2413.

It is an arithmetic number, because the mean of its divisors is an integer number (296784).

2^2742838 is an apocalyptic number.

2742838 is a deficient number, since it is larger than the sum of its proper divisors (2005706).

2742838 is a wasteful number, since it uses less digits than its factorization.

2742838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947.

The product of its digits is 21504, while the sum is 34.

The square root of 2742838 is about 1656.1515631125. The cubic root of 2742838 is about 139.9802353051.

The spelling of 2742838 in words is "two million, seven hundred forty-two thousand, eight hundred thirty-eight".