478344031 has 4 divisors (see below), whose sum is σ = 521829864. Its totient is φ = 434858200.

The previous prime is 478344017. The next prime is 478344037. The reversal of 478344031 is 130443874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478344031 - 2⁹ = 478343519 is a prime.

It is a super-2 number, since 2×478344031² = 457626023986657922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478344037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21742900 + ... + 21742921.

It is an arithmetic number, because the mean of its divisors is an integer number (130457466).

Almost surely, 2^478344031 is an apocalyptic number.

478344031 is a deficient number, since it is larger than the sum of its proper divisors (43485833).

478344031 is a wasteful number, since it uses less digits than its factorization.

478344031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43485832.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 478344031 is about 21871.0774997484. The cubic root of 478344031 is about 782.0720880991.

The spelling of 478344031 in words is "four hundred seventy-eight million, three hundred forty-four thousand, thirty-one".