420233165 has 16 divisors (see below), whose sum is σ = 579078720. Its totient is φ = 289537920.

The previous prime is 420233141. The next prime is 420233173. The reversal of 420233165 is 561332024.

It is not a de Polignac number, because 420233165 - 2⁸ = 420232909 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200024 + ... + 202113.

It is an arithmetic number, because the mean of its divisors is an integer number (36192420).

Almost surely, 2^420233165 is an apocalyptic number.

It is an amenable number.

420233165 is a deficient number, since it is larger than the sum of its proper divisors (158845555).

420233165 is a wasteful number, since it uses less digits than its factorization.

420233165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402172.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 420233165 is about 20499.5893861316. The cubic root of 420233165 is about 749.0257958570.

Adding to 420233165 its reverse (561332024), we get a palindrome (981565189).

The spelling of 420233165 in words is "four hundred twenty million, two hundred thirty-three thousand, one hundred sixty-five".