421432033 has 8 divisors (see below), whose sum is σ = 469526400. Its totient is φ = 374968080.

The previous prime is 421432009. The next prime is 421432049. The reversal of 421432033 is 330234124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 421432033 - 2¹⁷ = 421300961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421431995 and 421432013.

It is not an unprimeable number, because it can be changed into a prime (421430033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407058 + ... + 408091.

It is an arithmetic number, because the mean of its divisors is an integer number (58690800).

Almost surely, 2^421432033 is an apocalyptic number.

It is an amenable number.

421432033 is a deficient number, since it is larger than the sum of its proper divisors (48094367).

421432033 is a wasteful number, since it uses less digits than its factorization.

421432033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815207.

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

The square root of 421432033 is about 20528.8098291158. The cubic root of 421432033 is about 749.7374091091.

Adding to 421432033 its reverse (330234124), we get a palindrome (751666157).

The spelling of 421432033 in words is "four hundred twenty-one million, four hundred thirty-two thousand, thirty-three".