2118472 has 32 divisors (see below), whose sum is σ = 4329720. Its totient is φ = 967680.

The previous prime is 2118449. The next prime is 2118491. The reversal of 2118472 is 2748112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1833316 + 285156 = 1354^2 + 534^2 .

It is a super-2 number, since 2×2118472² = 8975847229568, which contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4822 + ... + 5242.

2^2118472 is an apocalyptic number.

It is an amenable number.

2118472 is an abundant number, since it is smaller than the sum of its proper divisors (2211248).

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

2118472 is a wasteful number, since it uses less digits than its factorization.

2118472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 477 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 2118472 is about 1455.4971659196. The cubic root of 2118472 is about 128.4322948757.

The spelling of 2118472 in words is "two million, one hundred eighteen thousand, four hundred seventy-two".