420198769 has 8 divisors (see below), whose sum is σ = 434355200. Its totient is φ = 406080000.

The previous prime is 420198761. The next prime is 420198773. The reversal of 420198769 is 967891024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420198769 - 2³ = 420198761 is a prime.

It is a super-2 number, since 2×420198769² = 353134010938230722, which contains 22 as substring.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 14257 + ... + 32305.

It is an arithmetic number, because the mean of its divisors is an integer number (54294400).

Almost surely, 2^420198769 is an apocalyptic number.

It is an amenable number.

420198769 is a deficient number, since it is larger than the sum of its proper divisors (14156431).

420198769 is a wasteful number, since it uses less digits than its factorization.

420198769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18831.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 420198769 is about 20498.7504253308. The cubic root of 420198769 is about 749.0053594292.

The spelling of 420198769 in words is "four hundred twenty million, one hundred ninety-eight thousand, seven hundred sixty-nine".