421000312 has 32 divisors (see below), whose sum is σ = 797040000. Its totient is φ = 208466784.

The previous prime is 421000297. The next prime is 421000313. The reversal of 421000312 is 213000124.

It is a junction number, because it is equal to n+sod(n) for n = 421000292 and 421000301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421000313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650373 + ... + 651019.

It is an arithmetic number, because the mean of its divisors is an integer number (24907500).

Almost surely, 2^421000312 is an apocalyptic number.

It is an amenable number.

421000312 is a deficient number, since it is larger than the sum of its proper divisors (376039688).

421000312 is a wasteful number, since it uses less digits than its factorization.

421000312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 421000312 is about 20518.2921316566. The cubic root of 421000312 is about 749.4813077308.

Adding to 421000312 its reverse (213000124), we get a palindrome (634000436).

The spelling of 421000312 in words is "four hundred twenty-one million, three hundred twelve", and thus it is an aban number.