2149789488 has 320 divisors, whose sum is σ = 7405240320. Its totient is φ = 520934400.

The previous prime is 2149789487. The next prime is 2149789493. The reversal of 2149789488 is 8849879412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2149789487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3322381 + ... + 3323027.

It is an arithmetic number, because the mean of its divisors is an integer number (23141376).

Almost surely, 2^2149789488 is an apocalyptic number.

2149789488 is a gapful number since it is divisible by the number (28) 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 2149789488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3702620160).

2149789488 is an abundant number, since it is smaller than the sum of its proper divisors (5255450832).

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

2149789488 is a wasteful number, since it uses less digits than its factorization.

2149789488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 730 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 60.

The square root of 2149789488 is about 46365.8224126349. The cubic root of 2149789488 is about 1290.6207552644.

The spelling of 2149789488 in words is "two billion, one hundred forty-nine million, seven hundred eighty-nine thousand, four hundred eighty-eight".