22149444330 has 160 divisors (see below), whose sum is σ = 67912148304. Its totient is φ = 5131413504.

The previous prime is 22149444277. The next prime is 22149444341. The reversal of 22149444330 is 3344494122.

22149444330 is a `hidden beast` number, since 2 + 214 + 9 + 4 + 4 + 433 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 12192797241 + 9956647089 = 110421^2 + 99783^2 .

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 79 ways as a sum of consecutive naturals, for example, 117144 + ... + 240876.

Almost surely, 2^22149444330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22149444330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33956074152).

22149444330 is an abundant number, since it is smaller than the sum of its proper divisors (45762703974).

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

22149444330 is a wasteful number, since it uses less digits than its factorization.

22149444330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123782 (or 123773 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 22149444330 in words is "twenty-two billion, one hundred forty-nine million, four hundred forty-four thousand, three hundred thirty".