2206872 has 64 divisors (see below), whose sum is σ = 6501600. Its totient is φ = 691200.

The previous prime is 2206861. The next prime is 2206877. The reversal of 2206872 is 2786022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206877) 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, 3372 + ... + 3972.

2^2206872 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 2206872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3250800).

2206872 is an abundant number, since it is smaller than the sum of its proper divisors (4294728).

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

2206872 is a wasteful number, since it uses less digits than its factorization.

2206872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2206872 is about 1485.5544419509. The cubic root of 2206872 is about 130.1944230872.

The spelling of 2206872 in words is "two million, two hundred six thousand, eight hundred seventy-two".