2099478528 has 320 divisors, whose sum is σ = 7231918320. Its totient is φ = 594542592.

The previous prime is 2099478527. The next prime is 2099478533. The reversal of 2099478528 is 8258749902.

2099478528 is a `hidden beast` number, since 20 + 9 + 94 + 7 + 8 + 528 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099478527) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18579400 + ... + 18579512.

Almost surely, 2^2099478528 is an apocalyptic number.

2099478528 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 2099478528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3615959160).

2099478528 is an abundant number, since it is smaller than the sum of its proper divisors (5132439792).

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

2099478528 is an frugal number, since it uses more digits than its factorization.

2099478528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 2099478528 is about 45820.0668703135. The cubic root of 2099478528 is about 1280.4731584064.

The spelling of 2099478528 in words is "two billion, ninety-nine million, four hundred seventy-eight thousand, five hundred twenty-eight".