503142444 has 72 divisors (see below), whose sum is σ = 1466468640. Its totient is φ = 142474752.

The previous prime is 503142433. The next prime is 503142467. The reversal of 503142444 is 444241305.

It is a happy number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 19642 + ... + 37310.

It is an arithmetic number, because the mean of its divisors is an integer number (20367620).

Almost surely, 2^503142444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503142444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733234320).

503142444 is an abundant number, since it is smaller than the sum of its proper divisors (963326196).

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

503142444 is a wasteful number, since it uses less digits than its factorization.

503142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17799 (or 17794 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 503142444 is about 22430.8368992332. The cubic root of 503142444 is about 795.3598276193.

Adding to 503142444 its reverse (444241305), we get a palindrome (947383749).

The spelling of 503142444 in words is "five hundred three million, one hundred forty-two thousand, four hundred forty-four".