420198768 has 60 divisors (see below), whose sum is σ = 1282884408. Its totient is φ = 127332480.

The previous prime is 420198761. The next prime is 420198773. The reversal of 420198768 is 867891024.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420198761) 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, 131055 + ... + 134222.

Almost surely, 2^420198768 is an apocalyptic number.

420198768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

420198768 is an abundant number, since it is smaller than the sum of its proper divisors (862685640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420198768 is a wasteful number, since it uses less digits than its factorization.

420198768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265302 (or 265293 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 420198768 is about 20498.7504009391. The cubic root of 420198768 is about 749.0053588351.

The spelling of 420198768 in words is "four hundred twenty million, one hundred ninety-eight thousand, seven hundred sixty-eight".