478422293 has 4 divisors (see below), whose sum is σ = 481864320. Its totient is φ = 474980268.

The previous prime is 478422253. The next prime is 478422311. The reversal of 478422293 is 392224874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478422293 - 2²⁸ = 209986837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478422293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478422233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1720805 + ... + 1721082.

It is an arithmetic number, because the mean of its divisors is an integer number (120466080).

Almost surely, 2^478422293 is an apocalyptic number.

It is an amenable number.

478422293 is a deficient number, since it is larger than the sum of its proper divisors (3442027).

478422293 is a wasteful number, since it uses less digits than its factorization.

478422293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442026.

The product of its digits is 193536, while the sum is 41.

The square root of 478422293 is about 21872.8665931103. The cubic root of 478422293 is about 782.1147374506.

The spelling of 478422293 in words is "four hundred seventy-eight million, four hundred twenty-two thousand, two hundred ninety-three".