425542320 has 240 divisors, whose sum is σ = 1704748032. Its totient is φ = 93012480.

The previous prime is 425542309. The next prime is 425542333. The reversal of 425542320 is 23245524.

It is a happy number.

425542320 is a `hidden beast` number, since 425 + 5 + 4 + 232 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×425542320² = 362172532221964800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114085 + ... + 117755.

Almost surely, 2^425542320 is an apocalyptic number.

425542320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425542320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (852374016).

425542320 is an abundant number, since it is smaller than the sum of its proper divisors (1279205712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425542320 is a wasteful number, since it uses less digits than its factorization.

425542320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720 (or 3711 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 425542320 is about 20628.6771267573. The cubic root of 425542320 is about 752.1669596844.

Adding to 425542320 its reverse (23245524), we get a palindrome (448787844).

The spelling of 425542320 in words is "four hundred twenty-five million, five hundred forty-two thousand, three hundred twenty".