2381442769 has 2 divisors, whose sum is σ = 2381442770. Its totient is φ = 2381442768.

The previous prime is 2381442761. The next prime is 2381442787. The reversal of 2381442769 is 9672441832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1261670400 + 1119772369 = 35520^2 + 33463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2381442769 - 2³ = 2381442761 is a prime.

It is a super-2 number, since 2×2381442769² = 11342539324044774722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2381442761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1190721384 + 1190721385.

It is an arithmetic number, because the mean of its divisors is an integer number (1190721385).

Almost surely, 2^2381442769 is an apocalyptic number.

It is an amenable number.

2381442769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2381442769 is an equidigital number, since it uses as much as digits as its factorization.

2381442769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 46.

The square root of 2381442769 is about 48800.0283708934. The cubic root of 2381442769 is about 1335.4061838744.

The spelling of 2381442769 in words is "two billion, three hundred eighty-one million, four hundred forty-two thousand, seven hundred sixty-nine".