2172603324 has 48 divisors (see below), whose sum is σ = 5296223520. Its totient is φ = 692294400.

The previous prime is 2172603319. The next prime is 2172603331. The reversal of 2172603324 is 4233062712.

It is a junction number, because it is equal to n+sod(n) for n = 2172603291 and 2172603300.

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, 4242 + ... + 66054.

It is an arithmetic number, because the mean of its divisors is an integer number (110337990).

Almost surely, 2^2172603324 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 2172603324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2648111760).

2172603324 is an abundant number, since it is smaller than the sum of its proper divisors (3123620196).

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

2172603324 is a wasteful number, since it uses less digits than its factorization.

2172603324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61950 (or 61948 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 2172603324 is about 46611.1931192498. The cubic root of 2172603324 is about 1295.1701100805.

The spelling of 2172603324 in words is "two billion, one hundred seventy-two million, six hundred three thousand, three hundred twenty-four".