2842645 has 16 divisors (see below), whose sum is σ = 3718512. Its totient is φ = 2073600.

The previous prime is 2842643. The next prime is 2842649. The reversal of 2842645 is 5462482.

It can be written as a sum of positive squares in 8 ways, for example, as 106929 + 2735716 = 327^2 + 1654^2 .

It is not a de Polignac number, because 2842645 - 2¹ = 2842643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842643) 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, 6349 + ... + 6781.

It is an arithmetic number, because the mean of its divisors is an integer number (232407).

2^2842645 is an apocalyptic number.

It is an amenable number.

2842645 is a deficient number, since it is larger than the sum of its proper divisors (875867).

2842645 is a wasteful number, since it uses less digits than its factorization.

2842645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 15360, while the sum is 31.

The square root of 2842645 is about 1686.0145313727. The cubic root of 2842645 is about 141.6579248739.

The spelling of 2842645 in words is "two million, eight hundred forty-two thousand, six hundred forty-five".