434232421 has 8 divisors (see below), whose sum is σ = 497341184. Its totient is φ = 371392560.

The previous prime is 434232413. The next prime is 434232439. The reversal of 434232421 is 124232434.

It is a happy number.

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

It is not a de Polignac number, because 434232421 - 2³ = 434232413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434232401) 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, 63750 + ... + 70231.

It is an arithmetic number, because the mean of its divisors is an integer number (62167648).

Almost surely, 2^434232421 is an apocalyptic number.

It is an amenable number.

434232421 is a deficient number, since it is larger than the sum of its proper divisors (63108763).

434232421 is a wasteful number, since it uses less digits than its factorization.

434232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134451.

The product of its digits is 4608, while the sum is 25.

The square root of 434232421 is about 20838.2441918699. The cubic root of 434232421 is about 757.2525573018.

Adding to 434232421 its reverse (124232434), we get a palindrome (558464855).

It can be divided in two parts, 4342 and 32421, that added together give a palindrome (36763).

The spelling of 434232421 in words is "four hundred thirty-four million, two hundred thirty-two thousand, four hundred twenty-one".