425224440 has 96 divisors (see below), whose sum is σ = 1387432800. Its totient is φ = 112945920.

The previous prime is 425224439. The next prime is 425224441. The reversal of 425224440 is 44422524.

It is an interprime number because it is at equal distance from previous prime (425224439) and next prime (425224441).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425224441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94645 + ... + 99035.

It is an arithmetic number, because the mean of its divisors is an integer number (14452425).

Almost surely, 2^425224440 is an apocalyptic number.

425224440 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 425224440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693716400).

425224440 is an abundant number, since it is smaller than the sum of its proper divisors (962208360).

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

425224440 is a wasteful number, since it uses less digits than its factorization.

425224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4670 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 425224440 is about 20620.9708791803. The cubic root of 425224440 is about 751.9796235236.

Adding to 425224440 its reverse (44422524), we get a palindrome (469646964).

The spelling of 425224440 in words is "four hundred twenty-five million, two hundred twenty-four thousand, four hundred forty".