2870842 has 16 divisors (see below), whose sum is σ = 4684680. Its totient is φ = 1311552.

The previous prime is 2870839. The next prime is 2870863. The reversal of 2870842 is 2480782.

It can be written as a sum of positive squares in 4 ways, for example, as 1229881 + 1640961 = 1109^2 + 1281^2 .

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 7 ways as a sum of consecutive naturals, for example, 2328 + ... + 3340.

2^2870842 is an apocalyptic number.

2870842 is a deficient number, since it is larger than the sum of its proper divisors (1813838).

2870842 is a wasteful number, since it uses less digits than its factorization.

2870842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 2870842 is about 1694.3559248281. The cubic root of 2870842 is about 142.1247663603.

The spelling of 2870842 in words is "two million, eight hundred seventy thousand, eight hundred forty-two".