2169426 has 48 divisors (see below), whose sum is σ = 5187456. Its totient is φ = 602784.

The previous prime is 2169397. The next prime is 2169443. The reversal of 2169426 is 6249612.

Its product of digits (5184) is a multiple of the sum of its prime divisors (216).

It is a junction number, because it is equal to n+sod(n) for n = 2169393 and 2169402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13740 + ... + 13896.

It is an arithmetic number, because the mean of its divisors is an integer number (108072).

2^2169426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2169426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2593728).

2169426 is an abundant number, since it is smaller than the sum of its proper divisors (3018030).

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

2169426 is a wasteful number, since it uses less digits than its factorization.

2169426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 216 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 2169426 is about 1472.8971450852. The cubic root of 2169426 is about 129.4538428150.

The spelling of 2169426 in words is "two million, one hundred sixty-nine thousand, four hundred twenty-six".