2743642 has 16 divisors (see below), whose sum is σ = 4515264. Its totient is φ = 1240000.

The previous prime is 2743627. The next prime is 2743669. The reversal of 2743642 is 2463472.

It is a d-powerful number, because it can be written as 2¹⁹ + 7² + 4³ + 3¹⁰ + 6⁶ + 4⁷ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 2743642.

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 7 ways as a sum of consecutive naturals, for example, 6642 + ... + 7042.

It is an arithmetic number, because the mean of its divisors is an integer number (282204).

2^2743642 is an apocalyptic number.

2743642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2743642 is a deficient number, since it is larger than the sum of its proper divisors (1771622).

2743642 is a wasteful number, since it uses less digits than its factorization.

2743642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its digits is 8064, while the sum is 28.

The square root of 2743642 is about 1656.3942767349. The cubic root of 2743642 is about 139.9939112998.

It can be divided in two parts, 274 and 3642, that added together give a triangular number (3916 = T₈₈).

The spelling of 2743642 in words is "two million, seven hundred forty-three thousand, six hundred forty-two".