503378343 has 48 divisors (see below), whose sum is σ = 831201280. Its totient is φ = 290993472.

The previous prime is 503378327. The next prime is 503378363. The reversal of 503378343 is 343873305.

It is a happy number.

503378343 is a `hidden beast` number, since 503 + 37 + 83 + 43 = 666.

It is not a de Polignac number, because 503378343 - 2⁴ = 503378327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 503378298 and 503378307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503378363) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 281430 + ... + 283212.

Almost surely, 2^503378343 is an apocalyptic number.

503378343 is a deficient number, since it is larger than the sum of its proper divisors (327822937).

503378343 is a wasteful number, since it uses less digits than its factorization.

503378343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 503378343 is about 22436.0946467963. The cubic root of 503378343 is about 795.4841100336.

The spelling of 503378343 in words is "five hundred three million, three hundred seventy-eight thousand, three hundred forty-three".