2126878 has 16 divisors (see below), whose sum is σ = 3462480. Its totient is φ = 974016.

The previous prime is 2126867. The next prime is 2126893. The reversal of 2126878 is 8786212.

It is a super-2 number, since 2×2126878² = 9047220053768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4426 + ... + 4882.

It is an arithmetic number, because the mean of its divisors is an integer number (216405).

2^2126878 is an apocalyptic number.

2126878 is a deficient number, since it is larger than the sum of its proper divisors (1335602).

2126878 is a wasteful number, since it uses less digits than its factorization.

2126878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651.

The product of its digits is 10752, while the sum is 34.

The square root of 2126878 is about 1458.3819801410. The cubic root of 2126878 is about 128.6019418466.

The spelling of 2126878 in words is "two million, one hundred twenty-six thousand, eight hundred seventy-eight".