478938425 has 24 divisors (see below), whose sum is σ = 695288832. Its totient is φ = 320400000.

The previous prime is 478938419. The next prime is 478938443. The reversal of 478938425 is 524839874.

It is not a de Polignac number, because 478938425 - 2⁸ = 478938169 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26201 + ... + 40550.

It is an arithmetic number, because the mean of its divisors is an integer number (28970368).

Almost surely, 2^478938425 is an apocalyptic number.

It is an amenable number.

478938425 is a deficient number, since it is larger than the sum of its proper divisors (216350407).

478938425 is a wasteful number, since it uses less digits than its factorization.

478938425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66809 (or 66804 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 478938425 is about 21884.6618662478. The cubic root of 478938425 is about 782.3958902956.

The spelling of 478938425 in words is "four hundred seventy-eight million, nine hundred thirty-eight thousand, four hundred twenty-five".