2389772331 has 12 divisors (see below), whose sum is σ = 3654946152. Its totient is φ = 1499464896.

The previous prime is 2389772321. The next prime is 2389772339. The reversal of 2389772331 is 1332779832.

It is not a de Polignac number, because 2389772331 - 2⁶ = 2389772267 is a prime.

It is a super-2 number, since 2×2389772331² = 11422023588026347122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2389772339) 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 11 ways as a sum of consecutive naturals, for example, 7809561 + ... + 7809866.

It is an arithmetic number, because the mean of its divisors is an integer number (304578846).

Almost surely, 2^2389772331 is an apocalyptic number.

2389772331 is a deficient number, since it is larger than the sum of its proper divisors (1265173821).

2389772331 is a wasteful number, since it uses less digits than its factorization.

2389772331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15619450 (or 15619447 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 2389772331 is about 48885.2976977741. The cubic root of 2389772331 is about 1336.9613202808.

The spelling of 2389772331 in words is "two billion, three hundred eighty-nine million, seven hundred seventy-two thousand, three hundred thirty-one".