2190544300 has 144 divisors (see below), whose sum is σ = 5652138240. Its totient is φ = 721232640.

The previous prime is 2190544283. The next prime is 2190544309. The reversal of 2190544300 is 34450912.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2190544309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2149191 + ... + 2150209.

It is an arithmetic number, because the mean of its divisors is an integer number (39250960).

Almost surely, 2^2190544300 is an apocalyptic number.

2190544300 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 2190544300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2826069120).

2190544300 is an abundant number, since it is smaller than the sum of its proper divisors (3461593940).

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

2190544300 is a wasteful number, since it uses less digits than its factorization.

2190544300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2190544300 is about 46803.2509554625. The cubic root of 2190544300 is about 1298.7254371755.

The spelling of 2190544300 in words is "two billion, one hundred ninety million, five hundred forty-four thousand, three hundred".