2104878 has 16 divisors (see below), whose sum is σ = 4355280. Its totient is φ = 677376.

The previous prime is 2104871. The next prime is 2104901. The reversal of 2104878 is 8784012.

It is a super-2 number, since 2×2104878² = 8861022789768, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5875 + ... + 6222.

It is an arithmetic number, because the mean of its divisors is an integer number (272205).

2^2104878 is an apocalyptic number.

2104878 is an abundant number, since it is smaller than the sum of its proper divisors (2250402).

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

2104878 is a wasteful number, since it uses less digits than its factorization.

2104878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12131.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 2104878 is about 1450.8197682690. The cubic root of 2104878 is about 128.1569932399.

The spelling of 2104878 in words is "two million, one hundred four thousand, eight hundred seventy-eight".