503406628 has 12 divisors (see below), whose sum is σ = 881338752. Its totient is φ = 251595560.

The previous prime is 503406611. The next prime is 503406643. The reversal of 503406628 is 826604305.

It is a happy number.

It is a super-2 number, since 2×503406628² = 506836466228660768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 503406593 and 503406602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15928 + ... + 35503.

It is an arithmetic number, because the mean of its divisors is an integer number (73444896).

Almost surely, 2^503406628 is an apocalyptic number.

It is an amenable number.

503406628 is a deficient number, since it is larger than the sum of its proper divisors (377932124).

503406628 is a wasteful number, since it uses less digits than its factorization.

503406628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53882 (or 53880 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 503406628 is about 22436.7249838295. The cubic root of 503406628 is about 795.4990092619.

The spelling of 503406628 in words is "five hundred three million, four hundred six thousand, six hundred twenty-eight".