478381449 has 32 divisors (see below), whose sum is σ = 826362880. Its totient is φ = 239049792.

The previous prime is 478381433. The next prime is 478381469. The reversal of 478381449 is 944183874.

It is not a de Polignac number, because 478381449 - 2⁴ = 478381433 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 478381398 and 478381407.

It is not an unprimeable number, because it can be changed into a prime (478381469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40927 + ... + 51300.

It is an arithmetic number, because the mean of its divisors is an integer number (25823840).

Almost surely, 2^478381449 is an apocalyptic number.

It is an amenable number.

478381449 is a deficient number, since it is larger than the sum of its proper divisors (347981431).

478381449 is a wasteful number, since it uses less digits than its factorization.

478381449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92269.

The product of its digits is 774144, while the sum is 48.

The square root of 478381449 is about 21871.9329049812. The cubic root of 478381449 is about 782.0924798454.

The spelling of 478381449 in words is "four hundred seventy-eight million, three hundred eighty-one thousand, four hundred forty-nine".