2724945 has 16 divisors (see below), whose sum is σ = 4380480. Its totient is φ = 1446464.

The previous prime is 2724937. The next prime is 2724949. The reversal of 2724945 is 5494272.

2724945 is a nontrivial binomial coefficient, being equal to C(2335, 2).

It is a cyclic number.

It is not a de Polignac number, because 2724945 - 2³ = 2724937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2724949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5602 + ... + 6068.

It is an arithmetic number, because the mean of its divisors is an integer number (273780).

2^2724945 is an apocalyptic number.

2724945 is the 2334-th triangular number.

It is an amenable number.

2724945 is a deficient number, since it is larger than the sum of its proper divisors (1655535).

2724945 is a wasteful number, since it uses less digits than its factorization.

2724945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its digits is 20160, while the sum is 33.

The square root of 2724945 is about 1650.7407428182. The cubic root of 2724945 is about 139.6751823390.

The spelling of 2724945 in words is "two million, seven hundred twenty-four thousand, nine hundred forty-five".