2118672 has 30 divisors (see below), whose sum is σ = 5929742. Its totient is φ = 706176.

The previous prime is 2118667. The next prime is 2118689. The reversal of 2118672 is 2768112.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 147456 = 1404^2 + 384^2 .

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7213 + ... + 7500.

2^2118672 is an apocalyptic number.

It is an amenable number.

2118672 is an abundant number, since it is smaller than the sum of its proper divisors (3811070).

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

2118672 is a wasteful number, since it uses less digits than its factorization.

2118672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14727 (or 14718 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 2118672 is about 1455.5658693443. The cubic root of 2118672 is about 128.4363364130.

The spelling of 2118672 in words is "two million, one hundred eighteen thousand, six hundred seventy-two".