421120000 has 240 divisors, whose sum is σ = 1228106880. Its totient is φ = 141312000.

The previous prime is 421119989. The next prime is 421120003. The reversal of 421120000 is 21124.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421120003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8959977 + ... + 8960023.

It is an arithmetic number, because the mean of its divisors is an integer number (5117112).

Almost surely, 2^421120000 is an apocalyptic number.

421120000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614053440).

421120000 is an abundant number, since it is smaller than the sum of its proper divisors (806986880).

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

421120000 is an frugal number, since it uses more digits than its factorization.

421120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 421120000 is about 20521.2085414091. The cubic root of 421120000 is about 749.5523254291.

Adding to 421120000 its reverse (21124), we get a palindrome (421141124).

The spelling of 421120000 in words is "four hundred twenty-one million, one hundred twenty thousand".