478888142 has 4 divisors (see below), whose sum is σ = 718332216. Its totient is φ = 239444070.

The previous prime is 478888133. The next prime is 478888169. The reversal of 478888142 is 241888874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241888874 = 2 ⋅120944437.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 119722034 + ... + 119722037.

It is an arithmetic number, because the mean of its divisors is an integer number (179583054).

Almost surely, 2^478888142 is an apocalyptic number.

478888142 is a deficient number, since it is larger than the sum of its proper divisors (239444074).

478888142 is a wasteful number, since it uses less digits than its factorization.

478888142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239444073.

The product of its digits is 917504, while the sum is 50.

The square root of 478888142 is about 21883.5130177949. The cubic root of 478888142 is about 782.3685084950.

The spelling of 478888142 in words is "four hundred seventy-eight million, eight hundred eighty-eight thousand, one hundred forty-two".