493422639 has 16 divisors (see below), whose sum is σ = 685772928. Its totient is φ = 315276192.

The previous prime is 493422623. The next prime is 493422641. The reversal of 493422639 is 936224394.

It is not a de Polignac number, because 493422639 - 2⁴ = 493422623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 493422639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493422539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25737 + ... + 40610.

It is an arithmetic number, because the mean of its divisors is an integer number (42860808).

Almost surely, 2^493422639 is an apocalyptic number.

493422639 is a deficient number, since it is larger than the sum of its proper divisors (192350289).

493422639 is a wasteful number, since it uses less digits than its factorization.

493422639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66454.

The product of its digits is 279936, while the sum is 42.

The square root of 493422639 is about 22213.1186239123. The cubic root of 493422639 is about 790.2048494036.

The spelling of 493422639 in words is "four hundred ninety-three million, four hundred twenty-two thousand, six hundred thirty-nine".