425352240 has 480 divisors, whose sum is σ = 1671321600. Its totient is φ = 96215040.

The previous prime is 425352233. The next prime is 425352241. The reversal of 425352240 is 42253524.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (425352241) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 7209331 + ... + 7209389.

It is an arithmetic number, because the mean of its divisors is an integer number (3481920).

Almost surely, 2^425352240 is an apocalyptic number.

425352240 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 425352240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835660800).

425352240 is an abundant number, since it is smaller than the sum of its proper divisors (1245969360).

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

425352240 is a wasteful number, since it uses less digits than its factorization.

425352240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 136 counting only the distinct ones).

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

The square root of 425352240 is about 20624.0694335526. The cubic root of 425352240 is about 752.0549510923.

The spelling of 425352240 in words is "four hundred twenty-five million, three hundred fifty-two thousand, two hundred forty".