2724742 has 4 divisors (see below), whose sum is σ = 4087116. Its totient is φ = 1362370.

The previous prime is 2724739. The next prime is 2724749. The reversal of 2724742 is 2474272.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2724742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2724749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681184 + ... + 681187.

It is an arithmetic number, because the mean of its divisors is an integer number (1021779).

2^2724742 is an apocalyptic number.

2724742 is a deficient number, since it is larger than the sum of its proper divisors (1362374).

2724742 is a wasteful number, since it uses less digits than its factorization.

2724742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362373.

The product of its digits is 6272, while the sum is 28.

The square root of 2724742 is about 1650.6792541254. The cubic root of 2724742 is about 139.6717137961.

The spelling of 2724742 in words is "two million, seven hundred twenty-four thousand, seven hundred forty-two".