423444150 has 72 divisors (see below), whose sum is σ = 1161916704. Its totient is φ = 110510400.

The previous prime is 423444149. The next prime is 423444157. The reversal of 423444150 is 51444324.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423444157) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11140 + ... + 31160.

It is an arithmetic number, because the mean of its divisors is an integer number (16137732).

Almost surely, 2^423444150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423444150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580958352).

423444150 is an abundant number, since it is smaller than the sum of its proper divisors (738472554).

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

423444150 is a wasteful number, since it uses less digits than its factorization.

423444150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20086 (or 20078 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 423444150 is about 20577.7586243011. The cubic root of 423444150 is about 750.9287161737.

Adding to 423444150 its reverse (51444324), we get a palindrome (474888474).

It can be divided in two parts, 4234 and 44150, that added together give a palindrome (48384).

The spelling of 423444150 in words is "four hundred twenty-three million, four hundred forty-four thousand, one hundred fifty".