421434233 has 8 divisors (see below), whose sum is σ = 486790560. Its totient is φ = 360585280.

The previous prime is 421434229. The next prime is 421434241. The reversal of 421434233 is 332434124.

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

It is not a de Polignac number, because 421434233 - 2² = 421434229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421434253) 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, 1126643 + ... + 1127016.

It is an arithmetic number, because the mean of its divisors is an integer number (60848820).

Almost surely, 2^421434233 is an apocalyptic number.

It is an amenable number.

421434233 is a deficient number, since it is larger than the sum of its proper divisors (65356327).

421434233 is a wasteful number, since it uses less digits than its factorization.

421434233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253687.

The product of its digits is 6912, while the sum is 26.

The square root of 421434233 is about 20528.8634122788. The cubic root of 421434233 is about 749.7387137240.

Adding to 421434233 its reverse (332434124), we get a palindrome (753868357).

The spelling of 421434233 in words is "four hundred twenty-one million, four hundred thirty-four thousand, two hundred thirty-three".