2154884 has 6 divisors (see below), whose sum is σ = 3771054. Its totient is φ = 1077440.

The previous prime is 2154881. The next prime is 2154899. The reversal of 2154884 is 4884512.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 222784 = 1390^2 + 472^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2154884.

It is not an unprimeable number, because it can be changed into a prime (2154881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269357 + ... + 269364.

It is an arithmetic number, because the mean of its divisors is an integer number (628509).

2^2154884 is an apocalyptic number.

It is an amenable number.

2154884 is a deficient number, since it is larger than the sum of its proper divisors (1616170).

2154884 is a wasteful number, since it uses less digits than its factorization.

2154884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538725 (or 538723 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 2154884 is about 1467.9523153018. The cubic root of 2154884 is about 129.1639443524.

The spelling of 2154884 in words is "two million, one hundred fifty-four thousand, eight hundred eighty-four".