503905842 has 48 divisors (see below), whose sum is σ = 1194418368. Its totient is φ = 152267040.

The previous prime is 503905817. The next prime is 503905889. The reversal of 503905842 is 248509305.

It is a junction number, because it is equal to n+sod(n) for n = 503905797 and 503905806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70443 + ... + 77265.

It is an arithmetic number, because the mean of its divisors is an integer number (24883716).

Almost surely, 2^503905842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503905842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597209184).

503905842 is an abundant number, since it is smaller than the sum of its proper divisors (690512526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503905842 is a wasteful number, since it uses less digits than its factorization.

503905842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7215 (or 7212 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 503905842 is about 22447.8471573556. The cubic root of 503905842 is about 795.7618802826.

The spelling of 503905842 in words is "five hundred three million, nine hundred five thousand, eight hundred forty-two".