421123152 has 80 divisors (see below), whose sum is σ = 1141534080. Its totient is φ = 133593600.

The previous prime is 421123151. The next prime is 421123187. The reversal of 421123152 is 251321124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421123151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96702 + ... + 100962.

It is an arithmetic number, because the mean of its divisors is an integer number (14269176).

Almost surely, 2^421123152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421123152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570767040).

421123152 is an abundant number, since it is smaller than the sum of its proper divisors (720410928).

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

421123152 is a wasteful number, since it uses less digits than its factorization.

421123152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4366 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 421123152 is about 20521.2853398611. The cubic root of 421123152 is about 749.5541955081.

Adding to 421123152 its reverse (251321124), we get a palindrome (672444276).

The spelling of 421123152 in words is "four hundred twenty-one million, one hundred twenty-three thousand, one hundred fifty-two".