421320302 has 16 divisors (see below), whose sum is σ = 710186400. Its totient is φ = 186000672.

The previous prime is 421320293. The next prime is 421320313. The reversal of 421320302 is 203023124.

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, 351677 + ... + 352872.

It is an arithmetic number, because the mean of its divisors is an integer number (44386650).

Almost surely, 2^421320302 is an apocalyptic number.

421320302 is a deficient number, since it is larger than the sum of its proper divisors (288866098).

421320302 is a wasteful number, since it uses less digits than its factorization.

421320302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704587.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 421320302 is about 20526.0883268099. The cubic root of 421320302 is about 749.6711459018.

Adding to 421320302 its reverse (203023124), we get a palindrome (624343426).

The spelling of 421320302 in words is "four hundred twenty-one million, three hundred twenty thousand, three hundred two".