421024512 has 72 divisors (see below), whose sum is σ = 1124437104. Its totient is φ = 139853824.

The previous prime is 421024493. The next prime is 421024559. The reversal of 421024512 is 215420124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270328 + ... + 271880.

It is an arithmetic number, because the mean of its divisors is an integer number (15617182).

Almost surely, 2^421024512 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 421024512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562218552).

421024512 is an abundant number, since it is smaller than the sum of its proper divisors (703412592).

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

421024512 is a wasteful number, since it uses less digits than its factorization.

421024512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 421024512 is about 20518.8818408801. The cubic root of 421024512 is about 749.4956680528.

Adding to 421024512 its reverse (215420124), we get a palindrome (636444636).

The spelling of 421024512 in words is "four hundred twenty-one million, twenty-four thousand, five hundred twelve".