380338561 has 4 divisors (see below), whose sum is σ = 400356400. Its totient is φ = 360320724.

The previous prime is 380338499. The next prime is 380338573. The reversal of 380338561 is 165833083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 380338561 - 2¹⁷ = 380207489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 380338561.

It is not an unprimeable number, because it can be changed into a prime (380338061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10008891 + ... + 10008928.

It is an arithmetic number, because the mean of its divisors is an integer number (100089100).

Almost surely, 2^380338561 is an apocalyptic number.

It is an amenable number.

380338561 is a deficient number, since it is larger than the sum of its proper divisors (20017839).

380338561 is a wasteful number, since it uses less digits than its factorization.

380338561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20017838.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 380338561 is about 19502.2706626690. The cubic root of 380338561 is about 724.5306901662.

The spelling of 380338561 in words is "three hundred eighty million, three hundred thirty-eight thousand, five hundred sixty-one".