478142478 has 24 divisors (see below), whose sum is σ = 1130155416. Its totient is φ = 144891600.

The previous prime is 478142477. The next prime is 478142479. The reversal of 478142478 is 874241874.

It is an interprime number because it is at equal distance from previous prime (478142477) and next prime (478142479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478142477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1207233 + ... + 1207628.

It is an arithmetic number, because the mean of its divisors is an integer number (47089809).

Almost surely, 2^478142478 is an apocalyptic number.

478142478 is an abundant number, since it is smaller than the sum of its proper divisors (652012938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478142478 is a wasteful number, since it uses less digits than its factorization.

478142478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414880 (or 2414877 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 478142478 is about 21866.4692623203. The cubic root of 478142478 is about 781.9622291484.

The spelling of 478142478 in words is "four hundred seventy-eight million, one hundred forty-two thousand, four hundred seventy-eight".