421043254 has 8 divisors (see below), whose sum is σ = 633473928. Its totient is φ = 209885280.

The previous prime is 421043251. The next prime is 421043261. The reversal of 421043254 is 452340124.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421043251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317347 + ... + 318670.

It is an arithmetic number, because the mean of its divisors is an integer number (79184241).

Almost surely, 2^421043254 is an apocalyptic number.

421043254 is a deficient number, since it is larger than the sum of its proper divisors (212430674).

421043254 is a wasteful number, since it uses less digits than its factorization.

421043254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636350.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 421043254 is about 20519.3385370971. The cubic root of 421043254 is about 749.5067892101.

Adding to 421043254 its reverse (452340124), we get a palindrome (873383378).

The spelling of 421043254 in words is "four hundred twenty-one million, forty-three thousand, two hundred fifty-four".