425461218 has 72 divisors (see below), whose sum is σ = 1071973008. Its totient is φ = 112196448.

The previous prime is 425461217. The next prime is 425461229. The reversal of 425461218 is 812164524.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (425461217) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 45405 + ... + 53967.

It is an arithmetic number, because the mean of its divisors is an integer number (14888514).

Almost surely, 2^425461218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425461218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535986504).

425461218 is an abundant number, since it is smaller than the sum of its proper divisors (646511790).

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

425461218 is a wasteful number, since it uses less digits than its factorization.

425461218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608 (or 8588 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 425461218 is about 20626.7112744616. The cubic root of 425461218 is about 752.1191727251.

The spelling of 425461218 in words is "four hundred twenty-five million, four hundred sixty-one thousand, two hundred eighteen".