478358031 has 4 divisors (see below), whose sum is σ = 637810712. Its totient is φ = 318905352.

The previous prime is 478358011. The next prime is 478358039. The reversal of 478358031 is 130853874.

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

It is a de Polignac number, because none of the positive numbers 2^k-478358031 is a prime.

It is a super-2 number, since 2×478358031² = 457652811644393922, 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 (478358039) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 79726336 + ... + 79726341.

It is an arithmetic number, because the mean of its divisors is an integer number (159452678).

Almost surely, 2^478358031 is an apocalyptic number.

478358031 is a deficient number, since it is larger than the sum of its proper divisors (159452681).

478358031 is a wasteful number, since it uses less digits than its factorization.

478358031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159452680.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 478358031 is about 21871.3975547975. The cubic root of 478358031 is about 782.0797178256.

The spelling of 478358031 in words is "four hundred seventy-eight million, three hundred fifty-eight thousand, thirty-one".