421734312 has 48 divisors (see below), whose sum is σ = 1143373140. Its totient is φ = 140433408.

The previous prime is 421734307. The next prime is 421734343. The reversal of 421734312 is 213437124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 420824196 + 910116 = 20514^2 + 954^2 .

It is a super-2 number, since 2×421734312² = 355719659836226688, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 85218 + ... + 90030.

Almost surely, 2^421734312 is an apocalyptic number.

It is an amenable number.

421734312 is an abundant number, since it is smaller than the sum of its proper divisors (721638828).

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

421734312 is a wasteful number, since it uses less digits than its factorization.

421734312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6042 (or 6035 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 421734312 is about 20536.1708212607. The cubic root of 421734312 is about 749.9166200641.

The spelling of 421734312 in words is "four hundred twenty-one million, seven hundred thirty-four thousand, three hundred twelve".