380439387 has 6 divisors (see below), whose sum is σ = 549523572. Its totient is φ = 253626252.

The previous prime is 380439373. The next prime is 380439391. The reversal of 380439387 is 783934083.

It is a happy number.

It is not a de Polignac number, because 380439387 - 2¹⁰ = 380438363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380439307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21135513 + ... + 21135530.

It is an arithmetic number, because the mean of its divisors is an integer number (91587262).

Almost surely, 2^380439387 is an apocalyptic number.

380439387 is a deficient number, since it is larger than the sum of its proper divisors (169084185).

380439387 is a wasteful number, since it uses less digits than its factorization.

380439387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42271049 (or 42271046 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 380439387 is about 19504.8554724202. The cubic root of 380439387 is about 724.5947077588.

The spelling of 380439387 in words is "three hundred eighty million, four hundred thirty-nine thousand, three hundred eighty-seven".