478747442 has 8 divisors (see below), whose sum is σ = 719743536. Its totient is φ = 238832932.

The previous prime is 478747441. The next prime is 478747453. The reversal of 478747442 is 244747874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×478747442² = 458398226443086728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478747441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269288 + ... + 271059.

It is an arithmetic number, because the mean of its divisors is an integer number (89967942).

Almost surely, 2^478747442 is an apocalyptic number.

478747442 is a deficient number, since it is larger than the sum of its proper divisors (240996094).

478747442 is a wasteful number, since it uses less digits than its factorization.

478747442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540792.

The product of its digits is 1404928, while the sum is 47.

The square root of 478747442 is about 21880.2980327051. The cubic root of 478747442 is about 782.2918795832.

The spelling of 478747442 in words is "four hundred seventy-eight million, seven hundred forty-seven thousand, four hundred forty-two".