2145876 has 48 divisors (see below), whose sum is σ = 5414976. Its totient is φ = 658944.

The previous prime is 2145853. The next prime is 2145937. The reversal of 2145876 is 6785412.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13590 + ... + 13746.

It is an arithmetic number, because the mean of its divisors is an integer number (112812).

2^2145876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2707488).

2145876 is an abundant number, since it is smaller than the sum of its proper divisors (3269100).

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

2145876 is a wasteful number, since it uses less digits than its factorization.

2145876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 2145876 is about 1464.8808825294. The cubic root of 2145876 is about 128.9837128647.

The spelling of 2145876 in words is "two million, one hundred forty-five thousand, eight hundred seventy-six".