2174284 has 48 divisors (see below), whose sum is σ = 4721920. Its totient is φ = 855360.

The previous prime is 2174281. The next prime is 2174287. The reversal of 2174284 is 4824712.

It is an interprime number because it is at equal distance from previous prime (2174281) and next prime (2174287).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2174281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32419 + ... + 32485.

2^2174284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2174284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2360960).

2174284 is an abundant number, since it is smaller than the sum of its proper divisors (2547636).

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

2174284 is a wasteful number, since it uses less digits than its factorization.

2174284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 156 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 2174284 is about 1474.5453536599. The cubic root of 2174284 is about 129.5503995277.

Adding to 2174284 its reverse (4824712), we get a palindrome (6998996).

It can be divided in two parts, 21 and 74284, that added together give a triangular number (74305 = T₃₈₅).

The spelling of 2174284 in words is "two million, one hundred seventy-four thousand, two hundred eighty-four".