425478399 has 4 divisors (see below), whose sum is σ = 567304536. Its totient is φ = 283652264.

The previous prime is 425478377. The next prime is 425478407. The reversal of 425478399 is 993874524.

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

It is a cyclic number.

It is not a de Polignac number, because 425478399 - 2¹¹ = 425476351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425478899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70913064 + ... + 70913069.

It is an arithmetic number, because the mean of its divisors is an integer number (141826134).

Almost surely, 2^425478399 is an apocalyptic number.

425478399 is a deficient number, since it is larger than the sum of its proper divisors (141826137).

425478399 is a wasteful number, since it uses less digits than its factorization.

425478399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141826136.

The product of its digits is 2177280, while the sum is 51.

The square root of 425478399 is about 20627.1277447928. The cubic root of 425478399 is about 752.1292966291.

The spelling of 425478399 in words is "four hundred twenty-five million, four hundred seventy-eight thousand, three hundred ninety-nine".