425705472 has 90 divisors (see below), whose sum is σ = 1230204248. Its totient is φ = 141852672.

The previous prime is 425705429. The next prime is 425705479. The reversal of 425705472 is 274507524.

It is a happy number.

425705472 is a `hidden beast` number, since 42 + 5 + 70 + 547 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425705479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146013 + ... + 148899.

Almost surely, 2^425705472 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 425705472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615102124).

425705472 is an abundant number, since it is smaller than the sum of its proper divisors (804498776).

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

425705472 is an equidigital number, since it uses as much as digits as its factorization.

425705472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 425705472 is about 20632.6312427669. The cubic root of 425705472 is about 752.2630737943.

The spelling of 425705472 in words is "four hundred twenty-five million, seven hundred five thousand, four hundred seventy-two".