2993081520 has 160 divisors (see below), whose sum is σ = 10900802304. Its totient is φ = 669772800.

The previous prime is 2993081491. The next prime is 2993081543. The reversal of 2993081520 is 251803992.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9286 + ... + 77925.

Almost surely, 2^2993081520 is an apocalyptic number.

2993081520 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 2993081520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5450401152).

2993081520 is an abundant number, since it is smaller than the sum of its proper divisors (7907720784).

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

2993081520 is a wasteful number, since it uses less digits than its factorization.

2993081520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87251 (or 87245 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 2993081520 is about 54709.0625033915. The cubic root of 2993081520 is about 1441.1400308549.

The spelling of 2993081520 in words is "two billion, nine hundred ninety-three million, eighty-one thousand, five hundred twenty".