380805503 has 18 divisors (see below), whose sum is σ = 431658936. Its totient is φ = 335155392.

The previous prime is 380805497. The next prime is 380805511. The reversal of 380805503 is 305508083.

It is not a de Polignac number, because 380805503 - 2²⁶ = 313696639 is a prime.

It is a super-2 number, since 2×380805503² = 290025662230166018, which contains 22 as substring.

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 380805503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380805533) 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 17 ways as a sum of consecutive naturals, for example, 1216475 + ... + 1216787.

It is an arithmetic number, because the mean of its divisors is an integer number (23981052).

Almost surely, 2^380805503 is an apocalyptic number.

380805503 is a deficient number, since it is larger than the sum of its proper divisors (50853433).

380805503 is an equidigital number, since it uses as much as digits as its factorization.

380805503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 380805503 is about 19514.2384683595. The cubic root of 380805503 is about 724.8270712410.

The spelling of 380805503 in words is "three hundred eighty million, eight hundred five thousand, five hundred three".