478152431 has 4 divisors (see below), whose sum is σ = 478264032. Its totient is φ = 478040832.

The previous prime is 478152407. The next prime is 478152481. The reversal of 478152431 is 134251874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478152431 is a prime.

It is a super-2 number, since 2×478152431² = 457259494542419522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478152391 and 478152400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478152481) 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, 49106 + ... + 58031.

It is an arithmetic number, because the mean of its divisors is an integer number (119566008).

Almost surely, 2^478152431 is an apocalyptic number.

478152431 is a deficient number, since it is larger than the sum of its proper divisors (111601).

478152431 is a wasteful number, since it uses less digits than its factorization.

478152431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111600.

The product of its digits is 26880, while the sum is 35.

The square root of 478152431 is about 21866.6968470320. The cubic root of 478152431 is about 781.9676548784.

The spelling of 478152431 in words is "four hundred seventy-eight million, one hundred fifty-two thousand, four hundred thirty-one".