425889648 has 60 divisors (see below), whose sum is σ = 1195120680. Its totient is φ = 141579648.

The previous prime is 425889641. The next prime is 425889649. The reversal of 425889648 is 846988524.

It is a junction number, because it is equal to n+sod(n) for n = 425889594 and 425889603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425889641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52215 + ... + 59817.

It is an arithmetic number, because the mean of its divisors is an integer number (19918678).

Almost surely, 2^425889648 is an apocalyptic number.

425889648 is a gapful number since it is divisible by the number (48) 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 425889648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597560340).

425889648 is an abundant number, since it is smaller than the sum of its proper divisors (769231032).

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

425889648 is a wasteful number, since it uses less digits than its factorization.

425889648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8006 (or 7997 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 425889648 is about 20637.0939814694. The cubic root of 425889648 is about 752.3715438026.

The spelling of 425889648 in words is "four hundred twenty-five million, eight hundred eighty-nine thousand, six hundred forty-eight".