425224140 has 96 divisors (see below), whose sum is σ = 1311932160. Its totient is φ = 102048000.

The previous prime is 425224133. The next prime is 425224147. The reversal of 425224140 is 41422524.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (425224133) and next prime (425224147).

It is a self number, because there is not a number n which added to its sum of digits gives 425224140.

It is not an unprimeable number, because it can be changed into a prime (425224147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63471 + ... + 69849.

It is an arithmetic number, because the mean of its divisors is an integer number (13665960).

Almost surely, 2^425224140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425224140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655966080).

425224140 is an abundant number, since it is smaller than the sum of its proper divisors (886708020).

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

425224140 is a wasteful number, since it uses less digits than its factorization.

425224140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503 (or 6501 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 425224140 is about 20620.9636050307. The cubic root of 425224140 is about 751.9794466806.

Adding to 425224140 its reverse (41422524), we get a palindrome (466646664).

The spelling of 425224140 in words is "four hundred twenty-five million, two hundred twenty-four thousand, one hundred forty".