478352401 has 4 divisors (see below), whose sum is σ = 487377972. Its totient is φ = 469326832.

The previous prime is 478352393. The next prime is 478352461. The reversal of 478352401 is 104253874.

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

It can be written as a sum of positive squares in 2 ways, for example, as 234243025 + 244109376 = 15305^2 + 15624^2 .

It is a cyclic number.

It is not a de Polignac number, because 478352401 - 2³ = 478352393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478352461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4512706 + ... + 4512811.

It is an arithmetic number, because the mean of its divisors is an integer number (121844493).

Almost surely, 2^478352401 is an apocalyptic number.

It is an amenable number.

478352401 is a deficient number, since it is larger than the sum of its proper divisors (9025571).

478352401 is an equidigital number, since it uses as much as digits as its factorization.

478352401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9025570.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 478352401 is about 21871.2688475086. The cubic root of 478352401 is about 782.0766496035.

The spelling of 478352401 in words is "four hundred seventy-eight million, three hundred fifty-two thousand, four hundred one".