380078399 has 4 divisors (see below), whose sum is σ = 381738360. Its totient is φ = 378418440.

The previous prime is 380078351. The next prime is 380078411. The reversal of 380078399 is 993870083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 380078399 - 2²⁰ = 379029823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380078329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829637 + ... + 830094.

It is an arithmetic number, because the mean of its divisors is an integer number (95434590).

Almost surely, 2^380078399 is an apocalyptic number.

380078399 is a deficient number, since it is larger than the sum of its proper divisors (1659961).

380078399 is a wasteful number, since it uses less digits than its factorization.

380078399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659960.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 380078399 is about 19495.5994778309. The cubic root of 380078399 is about 724.3654528682.

The spelling of 380078399 in words is "three hundred eighty million, seventy-eight thousand, three hundred ninety-nine".