380640927 has 12 divisors (see below), whose sum is σ = 535640280. Its totient is φ = 240404112.

The previous prime is 380640917. The next prime is 380640947. The reversal of 380640927 is 729046083.

It is not a de Polignac number, because 380640927 - 2¹⁸ = 380378783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380640917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174652 + ... + 176817.

It is an arithmetic number, because the mean of its divisors is an integer number (44636690).

Almost surely, 2^380640927 is an apocalyptic number.

380640927 is a deficient number, since it is larger than the sum of its proper divisors (154999353).

380640927 is a wasteful number, since it uses less digits than its factorization.

380640927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351510 (or 351491 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 380640927 is about 19510.0211942478. The cubic root of 380640927 is about 724.7226379385.

The spelling of 380640927 in words is "three hundred eighty million, six hundred forty thousand, nine hundred twenty-seven".