425502220 has 96 divisors (see below), whose sum is σ = 1078410816. Its totient is φ = 138931200.

The previous prime is 425502211. The next prime is 425502269. The reversal of 425502220 is 22205524.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 425502191 and 425502200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103810 + ... + 107830.

It is an arithmetic number, because the mean of its divisors is an integer number (11233446).

Almost surely, 2^425502220 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 425502220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539205408).

425502220 is an abundant number, since it is smaller than the sum of its proper divisors (652908596).

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

425502220 is a wasteful number, since it uses less digits than its factorization.

425502220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 425502220 is about 20627.7051559305. The cubic root of 425502220 is about 752.1433327022.

Adding to 425502220 its reverse (22205524), we get a palindrome (447707744).

The spelling of 425502220 in words is "four hundred twenty-five million, five hundred two thousand, two hundred twenty".