425534220 has 36 divisors (see below), whose sum is σ = 1290787680. Its totient is φ = 113475744.

The previous prime is 425534189. The next prime is 425534257. The reversal of 425534220 is 22435524.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 1181860 + ... + 1182219.

Almost surely, 2^425534220 is an apocalyptic number.

It is an amenable number.

425534220 is an abundant number, since it is smaller than the sum of its proper divisors (865253460).

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

425534220 is a wasteful number, since it uses less digits than its factorization.

425534220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364094 (or 2364089 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 425534220 is about 20628.4807971891. The cubic root of 425534220 is about 752.1621872715.

Adding to 425534220 its reverse (22435524), we get a palindrome (447969744).

The spelling of 425534220 in words is "four hundred twenty-five million, five hundred thirty-four thousand, two hundred twenty".