254433421 has 8 divisors (see below), whose sum is σ = 277876800. Its totient is φ = 231042240.

The previous prime is 254433409. The next prime is 254433457. The reversal of 254433421 is 124334452.

It is a happy number.

254433421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 254433421 - 2⁷ = 254433293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254433421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254433401) 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, 2476 + ... + 22693.

It is an arithmetic number, because the mean of its divisors is an integer number (34734600).

Almost surely, 2^254433421 is an apocalyptic number.

It is an amenable number.

254433421 is a deficient number, since it is larger than the sum of its proper divisors (23443379).

254433421 is a wasteful number, since it uses less digits than its factorization.

254433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26099.

The product of its digits is 11520, while the sum is 28.

The square root of 254433421 is about 15950.9692808932. The cubic root of 254433421 is about 633.6625671092.

Adding to 254433421 its reverse (124334452), we get a palindrome (378767873).

The spelling of 254433421 in words is "two hundred fifty-four million, four hundred thirty-three thousand, four hundred twenty-one".