421345336 has 32 divisors (see below), whose sum is σ = 812980800. Its totient is φ = 204630400.

The previous prime is 421345333. The next prime is 421345339. The reversal of 421345336 is 633543124.

It is an interprime number because it is at equal distance from previous prime (421345333) and next prime (421345339).

It is a junction number, because it is equal to n+sod(n) for n = 421345298 and 421345307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421345333) 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 in 7 ways as a sum of consecutive naturals, for example, 37905 + ... + 47743.

It is an arithmetic number, because the mean of its divisors is an integer number (25405650).

Almost surely, 2^421345336 is an apocalyptic number.

It is an amenable number.

421345336 is a deficient number, since it is larger than the sum of its proper divisors (391635464).

421345336 is a wasteful number, since it uses less digits than its factorization.

421345336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9999 (or 9995 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 421345336 is about 20526.6981270734. The cubic root of 421345336 is about 749.6859935887.

The spelling of 421345336 in words is "four hundred twenty-one million, three hundred forty-five thousand, three hundred thirty-six".