381270005 has 16 divisors (see below), whose sum is σ = 460899504. Its totient is φ = 302776320.

The previous prime is 381269981. The next prime is 381270031. The reversal of 381270005 is 500072183.

It can be written as a sum of positive squares in 8 ways, for example, as 5329 + 381264676 = 73^2 + 19526^2 .

It is not a de Polignac number, because 381270005 - 2¹⁰ = 381268981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594485 + ... + 595125.

It is an arithmetic number, because the mean of its divisors is an integer number (28806219).

Almost surely, 2^381270005 is an apocalyptic number.

It is an amenable number.

381270005 is a deficient number, since it is larger than the sum of its proper divisors (79629499).

381270005 is a wasteful number, since it uses less digits than its factorization.

381270005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 381270005 is about 19526.1364586034. The cubic root of 381270005 is about 725.1216632922.

The spelling of 381270005 in words is "three hundred eighty-one million, two hundred seventy thousand, five".