2186472 has 64 divisors (see below), whose sum is σ = 6065280. Its totient is φ = 653312.

The previous prime is 2186467. The next prime is 2186473. The reversal of 2186472 is 2746812.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2186473) 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, 9268 + ... + 9500.

It is an arithmetic number, because the mean of its divisors is an integer number (94770).

2^2186472 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 2186472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3032640).

2186472 is an abundant number, since it is smaller than the sum of its proper divisors (3878808).

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

2186472 is a wasteful number, since it uses less digits than its factorization.

2186472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 278 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 2186472 is about 1478.6723775063. The cubic root of 2186472 is about 129.7920145641.

The spelling of 2186472 in words is "two million, one hundred eighty-six thousand, four hundred seventy-two".