420432033 has 16 divisors (see below), whose sum is σ = 641311616. Its totient is φ = 240001920.

The previous prime is 420432029. The next prime is 420432041. The reversal of 420432033 is 330234024.

It is not a de Polignac number, because 420432033 - 2² = 420432029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420432043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12003 + ... + 31383.

It is an arithmetic number, because the mean of its divisors is an integer number (40081976).

Almost surely, 2^420432033 is an apocalyptic number.

It is an amenable number.

420432033 is a deficient number, since it is larger than the sum of its proper divisors (220879583).

420432033 is a wasteful number, since it uses less digits than its factorization.

420432033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20424.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 420432033 is about 20504.4393485899. The cubic root of 420432033 is about 749.1439316789.

Adding to 420432033 its reverse (330234024), we get a palindrome (750666057).

The spelling of 420432033 in words is "four hundred twenty million, four hundred thirty-two thousand, thirty-three".