380356639 has 24 divisors (see below), whose sum is σ = 431001600. Its totient is φ = 335106720.

The previous prime is 380356637. The next prime is 380356643. The reversal of 380356639 is 936653083.

It is not a de Polignac number, because 380356639 - 2¹ = 380356637 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380356595 and 380356604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380356637) 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, 413422 + ... + 414340.

It is an arithmetic number, because the mean of its divisors is an integer number (17958400).

Almost surely, 2^380356639 is an apocalyptic number.

380356639 is a deficient number, since it is larger than the sum of its proper divisors (50644961).

380356639 is a wasteful number, since it uses less digits than its factorization.

380356639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 380356639 is about 19502.7341416531. The cubic root of 380356639 is about 724.5421692883.

The spelling of 380356639 in words is "three hundred eighty million, three hundred fifty-six thousand, six hundred thirty-nine".