420431198 has 24 divisors (see below), whose sum is σ = 694298304. Its totient is φ = 190799840.

The previous prime is 420431197. The next prime is 420431201. The reversal of 420431198 is 891134024.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420431197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229715 + ... + 231537.

It is an arithmetic number, because the mean of its divisors is an integer number (28929096).

Almost surely, 2^420431198 is an apocalyptic number.

420431198 is a deficient number, since it is larger than the sum of its proper divisors (273867106).

420431198 is a wasteful number, since it uses less digits than its factorization.

420431198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 420431198 is about 20504.4189871354. The cubic root of 420431198 is about 749.1434357323.

The spelling of 420431198 in words is "four hundred twenty million, four hundred thirty-one thousand, one hundred ninety-eight".