2152878 has 32 divisors (see below), whose sum is σ = 5300736. Its totient is φ = 567648.

The previous prime is 2152867. The next prime is 2152879. The reversal of 2152878 is 8782512.

2152878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152879) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1426 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (165648).

2^2152878 is an apocalyptic number.

2152878 is an abundant number, since it is smaller than the sum of its proper divisors (3147858).

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

2152878 is a wasteful number, since it uses less digits than its factorization.

2152878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968.

The product of its digits is 8960, while the sum is 33.

The square root of 2152878 is about 1467.2688915124. The cubic root of 2152878 is about 129.1238519678.

The spelling of 2152878 in words is "two million, one hundred fifty-two thousand, eight hundred seventy-eight".