2991741480 has 640 divisors, whose sum is σ = 12635884800. Its totient is φ = 618098688.

The previous prime is 2991741479. The next prime is 2991741499. The reversal of 2991741480 is 841471992.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 21523251 + ... + 21523389.

It is an arithmetic number, because the mean of its divisors is an integer number (19743570).

Almost surely, 2^2991741480 is an apocalyptic number.

2991741480 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 2991741480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6317942400).

2991741480 is an abundant number, since it is smaller than the sum of its proper divisors (9644143320).

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

2991741480 is a wasteful number, since it uses less digits than its factorization.

2991741480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 2991741480 is about 54696.8141668233. The cubic root of 2991741480 is about 1440.9249266164.

The spelling of 2991741480 in words is "two billion, nine hundred ninety-one million, seven hundred forty-one thousand, four hundred eighty".