2181292932 has 96 divisors (see below), whose sum is σ = 6329112832. Its totient is φ = 569327616.

The previous prime is 2181292907. The next prime is 2181292951. The reversal of 2181292932 is 2392921812.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 31 ways as a sum of consecutive naturals, for example, 95628 + ... + 116220.

Almost surely, 2^2181292932 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 2181292932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3164556416).

2181292932 is an abundant number, since it is smaller than the sum of its proper divisors (4147819900).

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

2181292932 is a wasteful number, since it uses less digits than its factorization.

2181292932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20717 (or 20715 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 2181292932 is about 46704.3138478663. The cubic root of 2181292932 is about 1296.8945465420.

The spelling of 2181292932 in words is "two billion, one hundred eighty-one million, two hundred ninety-two thousand, nine hundred thirty-two".