2188747484 has 192 divisors, whose sum is σ = 5443200000. Its totient is φ = 758661120.

The previous prime is 2188747409. The next prime is 2188747499. The reversal of 2188747484 is 4847478812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4874492 + ... + 4874940.

It is an arithmetic number, because the mean of its divisors is an integer number (28350000).

Almost surely, 2^2188747484 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 2188747484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2721600000).

2188747484 is an abundant number, since it is smaller than the sum of its proper divisors (3254452516).

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

2188747484 is a wasteful number, since it uses less digits than its factorization.

2188747484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 505 counting only the distinct ones).

The product of its digits is 3211264, while the sum is 53.

The square root of 2188747484 is about 46784.0515988088. The cubic root of 2188747484 is about 1298.3702425053.

The spelling of 2188747484 in words is "two billion, one hundred eighty-eight million, seven hundred forty-seven thousand, four hundred eighty-four".