2123862 has 32 divisors (see below), whose sum is σ = 4649568. Its totient is φ = 642816.

The previous prime is 2123851. The next prime is 2123867. The reversal of 2123862 is 2683212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123867) 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, 5508 + ... + 5880.

It is an arithmetic number, because the mean of its divisors is an integer number (145299).

2^2123862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2324784).

2123862 is an abundant number, since it is smaller than the sum of its proper divisors (2525706).

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

2123862 is a wasteful number, since it uses less digits than its factorization.

2123862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its digits is 1152, while the sum is 24.

The square root of 2123862 is about 1457.3475906591. The cubic root of 2123862 is about 128.5411254863.

The spelling of 2123862 in words is "two million, one hundred twenty-three thousand, eight hundred sixty-two".