2174868 has 18 divisors (see below), whose sum is σ = 5497674. Its totient is φ = 724944.

The previous prime is 2174807. The next prime is 2174891. The reversal of 2174868 is 8684712.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 66564 = 1452^2 + 258^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 60413 = 2174868 / (2 + 1 + 7 + 4 + 8 + 6 + 8).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30171 + ... + 30242.

2^2174868 is an apocalyptic number.

It is an amenable number.

2174868 is an abundant number, since it is smaller than the sum of its proper divisors (3322806).

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

2174868 is a wasteful number, since it uses less digits than its factorization.

2174868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60423 (or 60418 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2174868 is about 1474.7433675050. The cubic root of 2174868 is about 129.5619973166.

The spelling of 2174868 in words is "two million, one hundred seventy-four thousand, eight hundred sixty-eight".