2161392 has 40 divisors (see below), whose sum is σ = 5739216. Its totient is φ = 700416.

The previous prime is 2161373. The next prime is 2161409. The reversal of 2161392 is 2931612.

2161392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168 + ... + 2384.

2^2161392 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 2161392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2869608).

2161392 is an abundant number, since it is smaller than the sum of its proper divisors (3577824).

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

2161392 is a wasteful number, since it uses less digits than its factorization.

2161392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265 (or 1259 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 2161392 is about 1470.1673374144. The cubic root of 2161392 is about 129.2938437084.

The spelling of 2161392 in words is "two million, one hundred sixty-one thousand, three hundred ninety-two".