2199461020 has 96 divisors (see below), whose sum is σ = 5142953088. Its totient is φ = 785866752.

The previous prime is 2199460987. The next prime is 2199461023. The reversal of 2199461020 is 201649912.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199461023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1070314 + ... + 1072366.

It is an arithmetic number, because the mean of its divisors is an integer number (53572428).

Almost surely, 2^2199461020 is an apocalyptic number.

2199461020 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 2199461020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2571476544).

2199461020 is an abundant number, since it is smaller than the sum of its proper divisors (2943492068).

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

2199461020 is a wasteful number, since it uses less digits than its factorization.

2199461020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 2199461020 is about 46898.4117001845. The cubic root of 2199461020 is about 1300.4852271497.

The spelling of 2199461020 in words is "two billion, one hundred ninety-nine million, four hundred sixty-one thousand, twenty".