421324033 has 4 divisors (see below), whose sum is σ = 453733588. Its totient is φ = 388914480.

The previous prime is 421324009. The next prime is 421324061. The reversal of 421324033 is 330423124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148644864 + 272679169 = 12192^2 + 16513^2 .

It is a cyclic number.

It is not a de Polignac number, because 421324033 - 2²⁵ = 387769601 is a prime.

It is a super-3 number, since 3×421324033³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421323995 and 421324013.

It is not an unprimeable number, because it can be changed into a prime (421324063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16204758 + ... + 16204783.

It is an arithmetic number, because the mean of its divisors is an integer number (113433397).

Almost surely, 2^421324033 is an apocalyptic number.

It is an amenable number.

421324033 is a deficient number, since it is larger than the sum of its proper divisors (32409555).

421324033 is a wasteful number, since it uses less digits than its factorization.

421324033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32409554.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 421324033 is about 20526.1792109491. The cubic root of 421324033 is about 749.6733587984.

Adding to 421324033 its reverse (330423124), we get a palindrome (751747157).

Subtracting from 421324033 its reverse (330423124), we obtain a palindrome (90900909).

The spelling of 421324033 in words is "four hundred twenty-one million, three hundred twenty-four thousand, thirty-three".