2193464880 has 480 divisors, whose sum is σ = 8333841600. Its totient is φ = 529514496.

The previous prime is 2193464849. The next prime is 2193464893. The reversal of 2193464880 is 884643912.

It is a happy number.

2193464880 is a `hidden beast` number, since 21 + 93 + 464 + 8 + 80 = 666.

It is a super-2 number, since 2×2193464880² = 9622576359586828800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22612992 + ... + 22613088.

It is an arithmetic number, because the mean of its divisors is an integer number (17362170).

Almost surely, 2^2193464880 is an apocalyptic number.

2193464880 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 2193464880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4166920800).

2193464880 is an abundant number, since it is smaller than the sum of its proper divisors (6140376720).

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

2193464880 is a wasteful number, since it uses less digits than its factorization.

2193464880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 2193464880 is about 46834.4411731367. The cubic root of 2193464880 is about 1299.3023633573.

The spelling of 2193464880 in words is "two billion, one hundred ninety-three million, four hundred sixty-four thousand, eight hundred eighty".