2152206 has 96 divisors (see below), whose sum is σ = 5990400. Its totient is φ = 544320.

The previous prime is 2152201. The next prime is 2152211. The reversal of 2152206 is 6022512.

2152206 = T₃₇₈ + T₃₇₉ + ... + T₄₀₅.

It is an interprime number because it is at equal distance from previous prime (2152201) and next prime (2152211).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69411 + ... + 69441.

It is an arithmetic number, because the mean of its divisors is an integer number (62400).

2^2152206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2995200).

2152206 is an abundant number, since it is smaller than the sum of its proper divisors (3838194).

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

2152206 is a wasteful number, since it uses less digits than its factorization.

2152206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2152206 is about 1467.0398767586. The cubic root of 2152206 is about 129.1104156501.

Adding to 2152206 its reverse (6022512), we get a palindrome (8174718).

The spelling of 2152206 in words is "two million, one hundred fifty-two thousand, two hundred six".