503442666 has 24 divisors (see below), whose sum is σ = 1125980544. Its totient is φ = 162400680.

The previous prime is 503442619. The next prime is 503442671. The reversal of 503442666 is 666244305.

It is a self number, because there is not a number n which added to its sum of digits gives 503442666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450556 + ... + 451671.

It is an arithmetic number, because the mean of its divisors is an integer number (46915856).

Almost surely, 2^503442666 is an apocalyptic number.

503442666 is an abundant number, since it is smaller than the sum of its proper divisors (622537878).

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

503442666 is a wasteful number, since it uses less digits than its factorization.

503442666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902266 (or 902263 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 503442666 is about 22437.5280724058. The cubic root of 503442666 is about 795.5179916032.

The spelling of 503442666 in words is "five hundred three million, four hundred forty-two thousand, six hundred sixty-six".