2154828 has 48 divisors (see below), whose sum is σ = 5707520. Its totient is φ = 627264.

The previous prime is 2154811. The next prime is 2154829. The reversal of 2154828 is 8284512.

It is a junction number, because it is equal to n+sod(n) for n = 2154795 and 2154804.

It is not an unprimeable number, because it can be changed into a prime (2154829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2601 + ... + 3327.

2^2154828 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 2154828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853760).

2154828 is an abundant number, since it is smaller than the sum of its proper divisors (3552692).

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

2154828 is a wasteful number, since it uses less digits than its factorization.

2154828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 764 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 2154828 is about 1467.9332409888. The cubic root of 2154828 is about 129.1628254610.

The spelling of 2154828 in words is "two million, one hundred fifty-four thousand, eight hundred twenty-eight".