2991250944 has 400 divisors, whose sum is σ = 9981861120. Its totient is φ = 884183040.

The previous prime is 2991250943. The next prime is 2991250957. The reversal of 2991250944 is 4490521992.

2991250944 is a `hidden beast` number, since 2 + 99 + 12 + 509 + 44 = 666.

It is a super-2 number, since 2×2991250944² = 17895164419961782272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2991250944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991250943) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 36039127 + ... + 36039209.

Almost surely, 2^2991250944 is an apocalyptic number.

2991250944 is a gapful number since it is divisible by the number (24) 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 2991250944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4990930560).

2991250944 is an abundant number, since it is smaller than the sum of its proper divisors (6990610176).

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

2991250944 is an equidigital number, since it uses as much as digits as its factorization.

2991250944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 2991250944 is about 54692.3298461494. The cubic root of 2991250944 is about 1440.8461693453.

The spelling of 2991250944 in words is "two billion, nine hundred ninety-one million, two hundred fifty thousand, nine hundred forty-four".