380278869 has 8 divisors (see below), whose sum is σ = 516605472. Its totient is φ = 248735760.

The previous prime is 380278861. The next prime is 380278883. The reversal of 380278869 is 968872083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 380278869 - 2³ = 380278861 is a prime.

It is a super-2 number, since 2×380278869² = 289224036415838322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380278861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195687 + ... + 1196004.

It is an arithmetic number, because the mean of its divisors is an integer number (64575684).

Almost surely, 2^380278869 is an apocalyptic number.

It is an amenable number.

380278869 is a deficient number, since it is larger than the sum of its proper divisors (136326603).

380278869 is a wasteful number, since it uses less digits than its factorization.

380278869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391747.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 380278869 is about 19500.7402167200. The cubic root of 380278869 is about 724.4927845096.

The spelling of 380278869 in words is "three hundred eighty million, two hundred seventy-eight thousand, eight hundred sixty-nine".