421010072 has 32 divisors (see below), whose sum is σ = 903376800. Its totient is φ = 180190464.

The previous prime is 421010071. The next prime is 421010123. The reversal of 421010072 is 270010124.

It is a self number, because there is not a number n which added to its sum of digits gives 421010072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421010071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40658 + ... + 49950.

It is an arithmetic number, because the mean of its divisors is an integer number (28230525).

Almost surely, 2^421010072 is an apocalyptic number.

It is an amenable number.

421010072 is an abundant number, since it is smaller than the sum of its proper divisors (482366728).

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

421010072 is a wasteful number, since it uses less digits than its factorization.

421010072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115 (or 10111 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 421010072 is about 20518.5299668373. The cubic root of 421010072 is about 749.4870993980.

Adding to 421010072 its reverse (270010124), we get a palindrome (691020196).

The spelling of 421010072 in words is "four hundred twenty-one million, ten thousand, seventy-two".