425217240 has 96 divisors (see below), whose sum is σ = 1579387680. Its totient is φ = 97191936.

The previous prime is 425217203. The next prime is 425217241. The reversal of 425217240 is 42712524.

425217240 is a `hidden beast` number, since 425 + 217 + 24 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425217241) 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 23 ways as a sum of consecutive naturals, for example, 81849 + ... + 86888.

It is an arithmetic number, because the mean of its divisors is an integer number (16451955).

Almost surely, 2^425217240 is an apocalyptic number.

425217240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425217240 is an abundant number, since it is smaller than the sum of its proper divisors (1154170440).

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

425217240 is a wasteful number, since it uses less digits than its factorization.

425217240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168761 (or 168754 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 425217240 is about 20620.7962988823. The cubic root of 425217240 is about 751.9753792679.

Adding to 425217240 its reverse (42712524), we get a palindrome (467929764).

The spelling of 425217240 in words is "four hundred twenty-five million, two hundred seventeen thousand, two hundred forty".