478242031 has 2 divisors, whose sum is σ = 478242032. Its totient is φ = 478242030.

The previous prime is 478241963. The next prime is 478242041. The reversal of 478242031 is 130242874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478242031 - 2¹⁹ = 477717743 is a prime.

It is a super-2 number, since 2×478242031² = 457430880430009922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 478241984 and 478242002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478242041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239121015 + 239121016.

It is an arithmetic number, because the mean of its divisors is an integer number (239121016).

Almost surely, 2^478242031 is an apocalyptic number.

478242031 is a deficient number, since it is larger than the sum of its proper divisors (1).

478242031 is an equidigital number, since it uses as much as digits as its factorization.

478242031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 478242031 is about 21868.7455287220. The cubic root of 478242031 is about 782.0164955977.

The spelling of 478242031 in words is "four hundred seventy-eight million, two hundred forty-two thousand, thirty-one".