421760338 has 16 divisors (see below), whose sum is σ = 660582720. Its totient is φ = 201578256.

The previous prime is 421760329. The next prime is 421760359. The reversal of 421760338 is 833067124.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 137356 + ... + 140392.

It is an arithmetic number, because the mean of its divisors is an integer number (41286420).

Almost surely, 2^421760338 is an apocalyptic number.

421760338 is a deficient number, since it is larger than the sum of its proper divisors (238822382).

421760338 is a wasteful number, since it uses less digits than its factorization.

421760338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 421760338 is about 20536.8044739195. The cubic root of 421760338 is about 749.9320459913.

The spelling of 421760338 in words is "four hundred twenty-one million, seven hundred sixty thousand, three hundred thirty-eight".