478022399 has 8 divisors (see below), whose sum is σ = 496855920. Its totient is φ = 459345600.

The previous prime is 478022359. The next prime is 478022407. The reversal of 478022399 is 993220874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478022399 - 2¹⁶ = 477956863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478022359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32942 + ... + 45179.

It is an arithmetic number, because the mean of its divisors is an integer number (62106990).

Almost surely, 2^478022399 is an apocalyptic number.

478022399 is a deficient number, since it is larger than the sum of its proper divisors (18833521).

478022399 is a wasteful number, since it uses less digits than its factorization.

478022399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78361.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 478022399 is about 21863.7233562813. The cubic root of 478022399 is about 781.8967639309.

The spelling of 478022399 in words is "four hundred seventy-eight million, twenty-two thousand, three hundred ninety-nine".