2991916382 has 48 divisors (see below), whose sum is σ = 5685558480. Its totient is φ = 1170271872.

The previous prime is 2991916381. The next prime is 2991916387. The reversal of 2991916382 is 2836191992.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2991916382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991916381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100193 + ... + 126579.

It is an arithmetic number, because the mean of its divisors is an integer number (118449135).

Almost surely, 2^2991916382 is an apocalyptic number.

2991916382 is a deficient number, since it is larger than the sum of its proper divisors (2693642098).

2991916382 is a wasteful number, since it uses less digits than its factorization.

2991916382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26505 (or 26498 counting only the distinct ones).

The product of its digits is 419904, while the sum is 50.

The square root of 2991916382 is about 54698.4129751495. The cubic root of 2991916382 is about 1440.9530056624.

The spelling of 2991916382 in words is "two billion, nine hundred ninety-one million, nine hundred sixteen thousand, three hundred eighty-two".