493218428 has 48 divisors (see below), whose sum is σ = 929211360. Its totient is φ = 228614400.

The previous prime is 493218419. The next prime is 493218491. The reversal of 493218428 is 824812394.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303458 + ... + 305078.

It is an arithmetic number, because the mean of its divisors is an integer number (19358570).

Almost surely, 2^493218428 is an apocalyptic number.

It is an amenable number.

493218428 is a deficient number, since it is larger than the sum of its proper divisors (435992932).

493218428 is a wasteful number, since it uses less digits than its factorization.

493218428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1756 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 493218428 is about 22208.5215176517. The cubic root of 493218428 is about 790.0958213099.

The spelling of 493218428 in words is "four hundred ninety-three million, two hundred eighteen thousand, four hundred twenty-eight".