2861802 has 24 divisors (see below), whose sum is σ = 6369636. Its totient is φ = 927936.

The previous prime is 2861801. The next prime is 2861809. The reversal of 2861802 is 2081682.

It can be written as a sum of positive squares in 2 ways, for example, as 2692881 + 168921 = 1641^2 + 411^2 .

It is not an unprimeable number, because it can be changed into a prime (2861801) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1483 + ... + 2814.

2^2861802 is an apocalyptic number.

2861802 is an abundant number, since it is smaller than the sum of its proper divisors (3507834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2861802 is a wasteful number, since it uses less digits than its factorization.

2861802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2861802 is about 1691.6861411030. The cubic root of 2861802 is about 141.9754305174.

It can be divided in two parts, 2861 and 802, that added together give a palindrome (3663).

The spelling of 2861802 in words is "two million, eight hundred sixty-one thousand, eight hundred two".