425322198 has 64 divisors (see below), whose sum is σ = 1082257920. Its totient is φ = 121287456.

The previous prime is 425322193. The next prime is 425322199. The reversal of 425322198 is 891223524.

It is a happy number.

425322198 is a `hidden beast` number, since 425 + 3 + 221 + 9 + 8 = 666.

It is a super-2 number, since 2×425322198² = 361797944223102408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425322193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330865 + ... + 332147.

It is an arithmetic number, because the mean of its divisors is an integer number (16910280).

Almost surely, 2^425322198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425322198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541128960).

425322198 is an abundant number, since it is smaller than the sum of its proper divisors (656935722).

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

425322198 is a wasteful number, since it uses less digits than its factorization.

425322198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178 (or 2172 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 425322198 is about 20623.3410969222. The cubic root of 425322198 is about 752.0372451656.

The spelling of 425322198 in words is "four hundred twenty-five million, three hundred twenty-two thousand, one hundred ninety-eight".