2981282391 has 24 divisors (see below), whose sum is σ = 4326894000. Its totient is φ = 1978042752.

The previous prime is 2981282371. The next prime is 2981282399. The reversal of 2981282391 is 1932821892.

It is a happy number.

2981282391 is a `hidden beast` number, since 298 + 128 + 239 + 1 = 666.

2981282391 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2981282391 - 2²² = 2977088087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981282399) 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, 2425165 + ... + 2426393.

It is an arithmetic number, because the mean of its divisors is an integer number (180287250).

Almost surely, 2^2981282391 is an apocalyptic number.

2981282391 is a deficient number, since it is larger than the sum of its proper divisors (1345611609).

2981282391 is a wasteful number, since it uses less digits than its factorization.

2981282391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2300 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 2981282391 is about 54601.1207852000. The cubic root of 2981282391 is about 1439.2438144909.

The spelling of 2981282391 in words is "two billion, nine hundred eighty-one million, two hundred eighty-two thousand, three hundred ninety-one".