2123388 has 24 divisors (see below), whose sum is σ = 5505360. Its totient is φ = 707760.

The previous prime is 2123377. The next prime is 2123411. The reversal of 2123388 is 8833212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9723 + ... + 9938.

It is an arithmetic number, because the mean of its divisors is an integer number (229390).

2^2123388 is an apocalyptic number.

It is an amenable number.

2123388 is an abundant number, since it is smaller than the sum of its proper divisors (3381972).

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

2123388 is a wasteful number, since it uses less digits than its factorization.

2123388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19674 (or 19666 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2123388 is about 1457.1849573750. The cubic root of 2123388 is about 128.5315622430.

It can be divided in two parts, 21233 and 88, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 2123388 in words is "two million, one hundred twenty-three thousand, three hundred eighty-eight".