2123208 has 48 divisors (see below), whose sum is σ = 5913180. Its totient is φ = 687744.

The previous prime is 2123203. The next prime is 2123213. The reversal of 2123208 is 8023212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2123203) and next prime (2123213).

It can be written as a sum of positive squares in 2 ways, for example, as 2022084 + 101124 = 1422^2 + 318^2 .

It is a super-2 number, since 2×2123208² = 9016024422528, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2123203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2266 + ... + 3062.

2^2123208 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 2123208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2956590).

2123208 is an abundant number, since it is smaller than the sum of its proper divisors (3789972).

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

2123208 is a wasteful number, since it uses less digits than its factorization.

2123208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2123208 is about 1457.1231931446. The cubic root of 2123208 is about 128.5279302588.

The spelling of 2123208 in words is "two million, one hundred twenty-three thousand, two hundred eight".