2128495320 has 576 divisors, whose sum is σ = 8627018400. Its totient is φ = 470292480.

The previous prime is 2128495301. The next prime is 2128495351. The reversal of 2128495320 is 235948212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19527426 + ... + 19527534.

Almost surely, 2^2128495320 is an apocalyptic number.

2128495320 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 2128495320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4313509200).

2128495320 is an abundant number, since it is smaller than the sum of its proper divisors (6498523080).

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

2128495320 is a wasteful number, since it uses less digits than its factorization.

2128495320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2128495320 is about 46135.6187776863. The cubic root of 2128495320 is about 1286.3453073901.

The spelling of 2128495320 in words is "two billion, one hundred twenty-eight million, four hundred ninety-five thousand, three hundred twenty".