2209940000 has 120 divisors (see below), whose sum is σ = 5554821888. Its totient is φ = 864800000.

The previous prime is 2209939987. The next prime is 2209940003. The reversal of 2209940000 is 499022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209940003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 938825 + ... + 941175.

Almost surely, 2^2209940000 is an apocalyptic number.

2209940000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2209940000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2777410944).

2209940000 is an abundant number, since it is smaller than the sum of its proper divisors (3344881888).

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

2209940000 is an equidigital number, since it uses as much as digits as its factorization.

2209940000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2209940000 is about 47009.9989363965. The cubic root of 2209940000 is about 1302.5472737511.

The spelling of 2209940000 in words is "two billion, two hundred nine million, nine hundred forty thousand".