2016740381 has 2 divisors, whose sum is σ = 2016740382. Its totient is φ = 2016740380.

The previous prime is 2016740357. The next prime is 2016740393. The reversal of 2016740381 is 1830476102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1059828025 + 956912356 = 32555^2 + 30934^2 .

It is a cyclic number.

It is not a de Polignac number, because 2016740381 - 2¹⁴ = 2016723997 is a prime.

It is a super-2 number, since 2×2016740381² = 8134483528712050322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2016740281) 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 as a sum of consecutive naturals, namely, 1008370190 + 1008370191.

It is an arithmetic number, because the mean of its divisors is an integer number (1008370191).

Almost surely, 2^2016740381 is an apocalyptic number.

It is an amenable number.

2016740381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016740381 is an equidigital number, since it uses as much as digits as its factorization.

2016740381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2016740381 is about 44908.1326821768. The cubic root of 2016740381 is about 1263.4265471855.

The spelling of 2016740381 in words is "two billion, sixteen million, seven hundred forty thousand, three hundred eighty-one".