503378944 has 22 divisors (see below), whose sum is σ = 1006268354. Its totient is φ = 251688960.

The previous prime is 503378923. The next prime is 503378957. The reversal of 503378944 is 449873305.

It can be written as a sum of positive squares in only one way, i.e., 287641600 + 215737344 = 16960^2 + 14688^2 .

It is a super-3 number, since 3×503378944³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 503378944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244767 + ... + 246814.

Almost surely, 2^503378944 is an apocalyptic number.

It is an amenable number.

503378944 is a deficient number, since it is larger than the sum of its proper divisors (502889410).

503378944 is an equidigital number, since it uses as much as digits as its factorization.

503378944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491601 (or 491583 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 503378944 is about 22436.1080403888. The cubic root of 503378944 is about 795.4844266184.

The spelling of 503378944 in words is "five hundred three million, three hundred seventy-eight thousand, nine hundred forty-four".