493943905 has 48 divisors (see below), whose sum is σ = 741018240. Its totient is φ = 309464064.

The previous prime is 493943903. The next prime is 493943909. The reversal of 493943905 is 509349394.

It is not a de Polignac number, because 493943905 - 2¹ = 493943903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493943903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 668026 + ... + 668764.

It is an arithmetic number, because the mean of its divisors is an integer number (15437880).

Almost surely, 2^493943905 is an apocalyptic number.

It is an amenable number.

493943905 is a deficient number, since it is larger than the sum of its proper divisors (247074335).

493943905 is a wasteful number, since it uses less digits than its factorization.

493943905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 493943905 is about 22224.8488183834. The cubic root of 493943905 is about 790.4830165862.

The spelling of 493943905 in words is "four hundred ninety-three million, nine hundred forty-three thousand, nine hundred five".