445252230 has 48 divisors (see below), whose sum is σ = 1165460400. Its totient is φ = 117933504.

The previous prime is 445252189. The next prime is 445252259. The reversal of 445252230 is 32252544.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 445252194 and 445252203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3192 + ... + 30011.

It is an arithmetic number, because the mean of its divisors is an integer number (24280425).

Almost surely, 2^445252230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445252230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582730200).

445252230 is an abundant number, since it is smaller than the sum of its proper divisors (720208170).

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

445252230 is a wasteful number, since it uses less digits than its factorization.

445252230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33365 (or 33362 counting only the distinct ones).

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

The square root of 445252230 is about 21101.0006871712. Note that the first 3 decimals coincide. The cubic root of 445252230 is about 763.6048903618.

The spelling of 445252230 in words is "four hundred forty-five million, two hundred fifty-two thousand, two hundred thirty".