2209820952 has 64 divisors (see below), whose sum is σ = 5667096960. Its totient is φ = 717651200.

The previous prime is 2209820927. The next prime is 2209820959. The reversal of 2209820952 is 2590289022.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2209820952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209820959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143427 + ... + 1145357.

It is an arithmetic number, because the mean of its divisors is an integer number (88548390).

Almost surely, 2^2209820952 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 2209820952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2833548480).

2209820952 is an abundant number, since it is smaller than the sum of its proper divisors (3457276008).

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

2209820952 is a wasteful number, since it uses less digits than its factorization.

2209820952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144 (or 3140 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2209820952 is about 47008.7327206339. The cubic root of 2209820952 is about 1302.5238842122.

The spelling of 2209820952 in words is "two billion, two hundred nine million, eight hundred twenty thousand, nine hundred fifty-two".