421446308 has 6 divisors (see below), whose sum is σ = 737531046. Its totient is φ = 210723152.

The previous prime is 421446307. The next prime is 421446313. The reversal of 421446308 is 803644124.

It can be written as a sum of positive squares in only one way, i.e., 421398784 + 47524 = 20528^2 + 218^2 .

It is not an unprimeable number, because it can be changed into a prime (421446307) by changing a digit.

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 as a sum of consecutive naturals, namely, 52680785 + ... + 52680792.

It is an arithmetic number, because the mean of its divisors is an integer number (122921841).

Almost surely, 2^421446308 is an apocalyptic number.

It is an amenable number.

421446308 is a deficient number, since it is larger than the sum of its proper divisors (316084738).

421446308 is a wasteful number, since it uses less digits than its factorization.

421446308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105361581 (or 105361579 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 421446308 is about 20529.1575082856. The cubic root of 421446308 is about 749.7458741995.

The spelling of 421446308 in words is "four hundred twenty-one million, four hundred forty-six thousand, three hundred eight".