2194034688 has 260 divisors, whose sum is σ = 6957599220. Its totient is φ = 686555136.

The previous prime is 2194034657. The next prime is 2194034743. The reversal of 2194034688 is 8864304912.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1116094464 + 1077940224 = 33408^2 + 32832^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5639998 + ... + 5640386.

It is an arithmetic number, because the mean of its divisors is an integer number (26759997).

Almost surely, 2^2194034688 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 2194034688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3478799610).

2194034688 is an abundant number, since it is smaller than the sum of its proper divisors (4763564532).

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

2194034688 is an equidigital number, since it uses as much as digits as its factorization.

2194034688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 411 counting only the distinct ones).

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

The square root of 2194034688 is about 46840.5239936532. The cubic root of 2194034688 is about 1299.4148625040.

The spelling of 2194034688 in words is "two billion, one hundred ninety-four million, thirty-four thousand, six hundred eighty-eight".