2154984 has 32 divisors (see below), whose sum is σ = 5802720. Its totient is φ = 662976.

The previous prime is 2154979. The next prime is 2155003. The reversal of 2154984 is 4894512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3142 + ... + 3765.

It is an arithmetic number, because the mean of its divisors is an integer number (181335).

2^2154984 is an apocalyptic number.

2154984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2154984 is an abundant number, since it is smaller than the sum of its proper divisors (3647736).

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

2154984 is a wasteful number, since it uses less digits than its factorization.

2154984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929 (or 6925 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 2154984 is about 1467.9863759586. The cubic root of 2154984 is about 129.1659423245.

The spelling of 2154984 in words is "two million, one hundred fifty-four thousand, nine hundred eighty-four".