2872642 has 8 divisors (see below), whose sum is σ = 4351932. Its totient is φ = 1422000.

The previous prime is 2872621. The next prime is 2872669. The reversal of 2872642 is 2462782.

2872642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2461761 + 410881 = 1569^2 + 641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6909 + ... + 7312.

2^2872642 is an apocalyptic number.

2872642 is a deficient number, since it is larger than the sum of its proper divisors (1479290).

2872642 is a wasteful number, since it uses less digits than its factorization.

2872642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14324.

The product of its digits is 10752, while the sum is 31.

The square root of 2872642 is about 1694.8870168834. The cubic root of 2872642 is about 142.1544639347.

The spelling of 2872642 in words is "two million, eight hundred seventy-two thousand, six hundred forty-two".