425221304 has 16 divisors (see below), whose sum is σ = 798680400. Its totient is φ = 212239872.

The previous prime is 425221297. The next prime is 425221333. The reversal of 425221304 is 403122524.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 425221304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41444 + ... + 50675.

It is an arithmetic number, because the mean of its divisors is an integer number (49917525).

Almost surely, 2^425221304 is an apocalyptic number.

It is an amenable number.

425221304 is a deficient number, since it is larger than the sum of its proper divisors (373459096).

425221304 is a wasteful number, since it uses less digits than its factorization.

425221304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92702 (or 92698 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 425221304 is about 20620.8948399433. The cubic root of 425221304 is about 751.9777749203.

Adding to 425221304 its reverse (403122524), we get a palindrome (828343828).

The spelling of 425221304 in words is "four hundred twenty-five million, two hundred twenty-one thousand, three hundred four".