2724605 has 16 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 1992000.

The previous prime is 2724599. The next prime is 2724629. The reversal of 2724605 is 5064272.

It is not a de Polignac number, because 2724605 - 2¹⁴ = 2708221 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 10730 + ... + 10980.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

2^2724605 is an apocalyptic number.

It is an amenable number.

2724605 is a deficient number, since it is larger than the sum of its proper divisors (831619).

2724605 is a wasteful number, since it uses less digits than its factorization.

2724605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2724605 is about 1650.6377555357. The cubic root of 2724605 is about 139.6693728594.

Adding to 2724605 its reverse (5064272), we get a palindrome (7788877).

It can be divided in two parts, 2724 and 605, that multiplied together give a triangular number (1648020 = T₁₈₁₅).

The spelling of 2724605 in words is "two million, seven hundred twenty-four thousand, six hundred five".