2723742 has 24 divisors (see below), whose sum is σ = 6744816. Its totient is φ = 778176.

The previous prime is 2723737. The next prime is 2723759. The reversal of 2723742 is 2473272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10683 + ... + 10934.

It is an arithmetic number, because the mean of its divisors is an integer number (281034).

2^2723742 is an apocalyptic number.

2723742 is an abundant number, since it is smaller than the sum of its proper divisors (4021074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2723742 is a wasteful number, since it uses less digits than its factorization.

2723742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21632 (or 21629 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 2723742 is about 1650.3763207220. The cubic root of 2723742 is about 139.6546248626.

The spelling of 2723742 in words is "two million, seven hundred twenty-three thousand, seven hundred forty-two".