425305240 has 32 divisors (see below), whose sum is σ = 957548880. Its totient is φ = 170013312.

The previous prime is 425305211. The next prime is 425305249. The reversal of 425305240 is 42503524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425305249) 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 7 ways as a sum of consecutive naturals, for example, 95299 + ... + 99661.

Almost surely, 2^425305240 is an apocalyptic number.

425305240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425305240 is an abundant number, since it is smaller than the sum of its proper divisors (532243640).

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

425305240 is a wasteful number, since it uses less digits than its factorization.

425305240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811 (or 6807 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 425305240 is about 20622.9299567254. The cubic root of 425305240 is about 752.0272502197.

Adding to 425305240 its reverse (42503524), we get a palindrome (467808764).

The spelling of 425305240 in words is "four hundred twenty-five million, three hundred five thousand, two hundred forty".