2152222304 has 72 divisors (see below), whose sum is σ = 4587066288. Its totient is φ = 993474560.

The previous prime is 2152222277. The next prime is 2152222349. The reversal of 2152222304 is 4032222512.

It is a self number, because there is not a number n which added to its sum of digits gives 2152222304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487949 + ... + 492339.

It is an arithmetic number, because the mean of its divisors is an integer number (63709254).

Almost surely, 2^2152222304 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 2152222304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2293533144).

2152222304 is an abundant number, since it is smaller than the sum of its proper divisors (2434843984).

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

2152222304 is a wasteful number, since it uses less digits than its factorization.

2152222304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488 (or 4463 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2152222304 is about 46392.0500085952. The cubic root of 2152222304 is about 1291.1074167384.

Adding to 2152222304 its reverse (4032222512), we get a palindrome (6184444816).

The spelling of 2152222304 in words is "two billion, one hundred fifty-two million, two hundred twenty-two thousand, three hundred four".