478714138 has 8 divisors (see below), whose sum is σ = 820652832. Its totient is φ = 205163196.

The previous prime is 478714099. The next prime is 478714151. The reversal of 478714138 is 831417874.

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

It is a junction number, because it is equal to n+sod(n) for n = 478714094 and 478714103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17096920 + ... + 17096947.

It is an arithmetic number, because the mean of its divisors is an integer number (102581604).

Almost surely, 2^478714138 is an apocalyptic number.

478714138 is a deficient number, since it is larger than the sum of its proper divisors (341938694).

478714138 is a wasteful number, since it uses less digits than its factorization.

478714138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34193876.

The product of its digits is 150528, while the sum is 43.

The square root of 478714138 is about 21879.5369695065. The cubic root of 478714138 is about 782.2737391535.

The spelling of 478714138 in words is "four hundred seventy-eight million, seven hundred fourteen thousand, one hundred thirty-eight".