2154284 has 18 divisors (see below), whose sum is σ = 4144812. Its totient is φ = 979000.

The previous prime is 2154281. The next prime is 2154293. The reversal of 2154284 is 4824512.

It is a happy number.

2154284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2154281) 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 5 ways as a sum of consecutive naturals, for example, 1742 + ... + 2709.

2^2154284 is an apocalyptic number.

It is an amenable number.

2154284 is a deficient number, since it is larger than the sum of its proper divisors (1990528).

2154284 is a wasteful number, since it uses less digits than its factorization.

2154284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477 (or 4464 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 2154284 is about 1467.7479347626. The cubic root of 2154284 is about 129.1519552213.

Adding to 2154284 its reverse (4824512), we get a palindrome (6978796).

The spelling of 2154284 in words is "two million, one hundred fifty-four thousand, two hundred eighty-four".