420158769 has 8 divisors (see below), whose sum is σ = 560310912. Its totient is φ = 280056240.

The previous prime is 420158749. The next prime is 420158801. The reversal of 420158769 is 967851024.

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

It is not a de Polignac number, because 420158769 - 2⁵ = 420158737 is a prime.

It is a super-2 number, since 2×420158769² = 353066782335190722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 420158769.

It is not an unprimeable number, because it can be changed into a prime (420158749) by changing a digit.

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, 18024 + ... + 34134.

It is an arithmetic number, because the mean of its divisors is an integer number (70038864).

Almost surely, 2^420158769 is an apocalyptic number.

It is an amenable number.

420158769 is a deficient number, since it is larger than the sum of its proper divisors (140152143).

420158769 is a wasteful number, since it uses less digits than its factorization.

420158769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24807.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 420158769 is about 20497.7747328826. The cubic root of 420158769 is about 748.9815919749.

The spelling of 420158769 in words is "four hundred twenty million, one hundred fifty-eight thousand, seven hundred sixty-nine".