478143457 has 8 divisors (see below), whose sum is σ = 523539072. Its totient is φ = 433069200.

The previous prime is 478143451. The next prime is 478143467. The reversal of 478143457 is 754341874.

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

It is a cyclic number.

It is not a de Polignac number, because 478143457 - 2¹¹ = 478141409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478143451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77218 + ... + 83179.

It is an arithmetic number, because the mean of its divisors is an integer number (65442384).

Almost surely, 2^478143457 is an apocalyptic number.

It is an amenable number.

478143457 is a deficient number, since it is larger than the sum of its proper divisors (45395615).

478143457 is a wasteful number, since it uses less digits than its factorization.

478143457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160679.

The product of its digits is 376320, while the sum is 43.

The square root of 478143457 is about 21866.4916481817. The cubic root of 478143457 is about 781.9627628390.

The spelling of 478143457 in words is "four hundred seventy-eight million, one hundred forty-three thousand, four hundred fifty-seven".