1380239271 has 24 divisors (see below), whose sum is σ = 2111526144. Its totient is φ = 900574200.

The previous prime is 1380239227. The next prime is 1380239321. The reversal of 1380239271 is 1729320831.

1380239271 is a `hidden beast` number, since 1 + 380 + 2 + 3 + 9 + 271 = 666.

It is not a de Polignac number, because 1380239271 - 2⁷ = 1380239143 is a prime.

It is a super-2 number, since 2×1380239271² = 3810120890421222882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380249271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49005 + ... + 71846.

It is an arithmetic number, because the mean of its divisors is an integer number (87980256).

Almost surely, 2^1380239271 is an apocalyptic number.

1380239271 is a deficient number, since it is larger than the sum of its proper divisors (731286873).

1380239271 is an equidigital number, since it uses as much as digits as its factorization.

1380239271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120913 (or 120901 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1380239271 is about 37151.5715818322. The cubic root of 1380239271 is about 1113.4006229922.

The spelling of 1380239271 in words is "one billion, three hundred eighty million, two hundred thirty-nine thousand, two hundred seventy-one".