2167381244 has 48 divisors (see below), whose sum is σ = 4483454976. Its totient is φ = 897134400.

The previous prime is 2167381231. The next prime is 2167381303. The reversal of 2167381244 is 4421837612.

It is a junction number, because it is equal to n+sod(n) for n = 2167381198 and 2167381207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493442 + ... + 497814.

It is an arithmetic number, because the mean of its divisors is an integer number (93405312).

Almost surely, 2^2167381244 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 2167381244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2241727488).

2167381244 is an abundant number, since it is smaller than the sum of its proper divisors (2316073732).

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

2167381244 is a wasteful number, since it uses less digits than its factorization.

2167381244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986 (or 4984 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 2167381244 is about 46555.1419716448. The cubic root of 2167381244 is about 1294.1315851591.

The spelling of 2167381244 in words is "two billion, one hundred sixty-seven million, three hundred eighty-one thousand, two hundred forty-four".