2700400381 has 4 divisors (see below), whose sum is σ = 3086171872. Its totient is φ = 2314628892.

The previous prime is 2700400331. The next prime is 2700400397. The reversal of 2700400381 is 1830040072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2700400381 - 2³¹ = 552916733 is a prime.

It is a super-2 number, since 2×2700400381² = 14584324435409890322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2700400331) 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 in 3 ways as a sum of consecutive naturals, for example, 192885735 + ... + 192885748.

It is an arithmetic number, because the mean of its divisors is an integer number (771542968).

Almost surely, 2^2700400381 is an apocalyptic number.

It is an amenable number.

2700400381 is a deficient number, since it is larger than the sum of its proper divisors (385771491).

2700400381 is an equidigital number, since it uses as much as digits as its factorization.

2700400381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385771490.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2700400381 is about 51965.3767522184. The cubic root of 2700400381 is about 1392.5454764589.

The spelling of 2700400381 in words is "two billion, seven hundred million, four hundred thousand, three hundred eighty-one".