2189351136 has 96 divisors (see below), whose sum is σ = 6692087808. Its totient is φ = 613716480.

The previous prime is 2189351113. The next prime is 2189351147. The reversal of 2189351136 is 6311539812.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2189351094 and 2189351103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4881 + ... + 66351.

It is an arithmetic number, because the mean of its divisors is an integer number (69709248).

Almost surely, 2^2189351136 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 2189351136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3346043904).

2189351136 is an abundant number, since it is smaller than the sum of its proper divisors (4502736672).

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

2189351136 is a wasteful number, since it uses less digits than its factorization.

2189351136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61544 (or 61536 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 2189351136 is about 46790.5026260672. The cubic root of 2189351136 is about 1298.4895941370.

The spelling of 2189351136 in words is "two billion, one hundred eighty-nine million, three hundred fifty-one thousand, one hundred thirty-six".