421023033 has 12 divisors (see below), whose sum is σ = 640152240. Its totient is φ = 265909176.

The previous prime is 421023017. The next prime is 421023041. The reversal of 421023033 is 330320124.

It is not a de Polignac number, because 421023033 - 2⁴ = 421023017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421022997 and 421023015.

It is not an unprimeable number, because it can be changed into a prime (421023433) 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 11 ways as a sum of consecutive naturals, for example, 1230891 + ... + 1231232.

It is an arithmetic number, because the mean of its divisors is an integer number (53346020).

Almost surely, 2^421023033 is an apocalyptic number.

It is an amenable number.

421023033 is a deficient number, since it is larger than the sum of its proper divisors (219129207).

421023033 is a wasteful number, since it uses less digits than its factorization.

421023033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462148 (or 2462145 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 421023033 is about 20518.8458008729. The cubic root of 421023033 is about 749.4947904275.

Adding to 421023033 its reverse (330320124), we get a palindrome (751343157).

The spelling of 421023033 in words is "four hundred twenty-one million, twenty-three thousand, thirty-three".