425633472 has 252 divisors, whose sum is σ = 1391277888. Its totient is φ = 124185600.

The previous prime is 425633431. The next prime is 425633473. The reversal of 425633472 is 274336524.

425633472 is a `hidden beast` number, since 4 + 256 + 334 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (425633473) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2160478 + ... + 2160674.

It is an arithmetic number, because the mean of its divisors is an integer number (5520944).

Almost surely, 2^425633472 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 425633472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695638944).

425633472 is an abundant number, since it is smaller than the sum of its proper divisors (965644416).

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

425633472 is a wasteful number, since it uses less digits than its factorization.

425633472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 244 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 425633472 is about 20630.8863600186. The cubic root of 425633472 is about 752.2206610632.

Adding to 425633472 its reverse (274336524), we get a palindrome (699969996).

The spelling of 425633472 in words is "four hundred twenty-five million, six hundred thirty-three thousand, four hundred seventy-two".