425124224 has 64 divisors (see below), whose sum is σ = 1001354400. Its totient is φ = 175902720.

The previous prime is 425124223. The next prime is 425124239. The reversal of 425124224 is 422421524.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 425124193 and 425124202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425124223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17804 + ... + 34164.

Almost surely, 2^425124224 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 425124224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500677200).

425124224 is an abundant number, since it is smaller than the sum of its proper divisors (576230176).

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

425124224 is a wasteful number, since it uses less digits than its factorization.

425124224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16411 (or 16399 counting only the distinct ones).

The product of its digits is 5120, while the sum is 26.

The square root of 425124224 is about 20618.5407825093. The cubic root of 425124224 is about 751.9205438911.

Adding to 425124224 its reverse (422421524), we get a palindrome (847545748).

The spelling of 425124224 in words is "four hundred twenty-five million, one hundred twenty-four thousand, two hundred twenty-four".