421315040 has 24 divisors (see below), whose sum is σ = 995357160. Its totient is φ = 168525952.

The previous prime is 421315021. The next prime is 421315051. The reversal of 421315040 is 40513124.

421315040 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316450 + ... + 1316769.

It is an arithmetic number, because the mean of its divisors is an integer number (41473215).

Almost surely, 2^421315040 is an apocalyptic number.

421315040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421315040 is an abundant number, since it is smaller than the sum of its proper divisors (574042120).

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

421315040 is a wasteful number, since it uses less digits than its factorization.

421315040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633234 (or 2633226 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 421315040 is about 20525.9601480662. The cubic root of 421315040 is about 749.6680249303.

Adding to 421315040 its reverse (40513124), we get a palindrome (461828164).

The spelling of 421315040 in words is "four hundred twenty-one million, three hundred fifteen thousand, forty".