421304312 has 32 divisors (see below), whose sum is σ = 928050480. Its totient is φ = 176770560.

The previous prime is 421304269. The next prime is 421304321. The reversal of 421304312 is 213403124.

It is a congruent number.

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, 182993 + ... + 185280.

Almost surely, 2^421304312 is an apocalyptic number.

It is an amenable number.

421304312 is an abundant number, since it is smaller than the sum of its proper divisors (506746168).

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

421304312 is a wasteful number, since it uses less digits than its factorization.

421304312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368303 (or 368299 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 421304312 is about 20525.6988187979. The cubic root of 421304312 is about 749.6616619113.

Adding to 421304312 its reverse (213403124), we get a palindrome (634707436).

The spelling of 421304312 in words is "four hundred twenty-one million, three hundred four thousand, three hundred twelve".