421213460 has 24 divisors (see below), whose sum is σ = 885052896. Its totient is φ = 168389280.

The previous prime is 421213411. The next prime is 421213493. The reversal of 421213460 is 64312124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37679 + ... + 47561.

It is an arithmetic number, because the mean of its divisors is an integer number (36877204).

Almost surely, 2^421213460 is an apocalyptic number.

It is an amenable number.

421213460 is an abundant number, since it is smaller than the sum of its proper divisors (463839436).

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

421213460 is a wasteful number, since it uses less digits than its factorization.

421213460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12023 (or 12021 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 421213460 is about 20523.4855714131. The cubic root of 421213460 is about 749.6077712075.

Adding to 421213460 its reverse (64312124), we get a palindrome (485525584).

The spelling of 421213460 in words is "four hundred twenty-one million, two hundred thirteen thousand, four hundred sixty".