2181325434 has 8 divisors (see below), whose sum is σ = 4362650880. Its totient is φ = 727108476.

The previous prime is 2181325411. The next prime is 2181325439. The reversal of 2181325434 is 4345231812.

It is a sphenic number, since it is the product of 3 distinct primes.

2181325434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2181325395 and 2181325404.

It is not an unprimeable number, because it can be changed into a prime (2181325439) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 181777114 + ... + 181777125.

It is an arithmetic number, because the mean of its divisors is an integer number (545331360).

Almost surely, 2^2181325434 is an apocalyptic number.

2181325434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2181325434 is a wasteful number, since it uses less digits than its factorization.

2181325434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363554244.

The product of its digits is 23040, while the sum is 33.

The square root of 2181325434 is about 46704.6618015804. The cubic root of 2181325434 is about 1296.9009878986.

The spelling of 2181325434 in words is "two billion, one hundred eighty-one million, three hundred twenty-five thousand, four hundred thirty-four".