421326454 has 4 divisors (see below), whose sum is σ = 631989684. Its totient is φ = 210663226.

The previous prime is 421326439. The next prime is 421326457. The reversal of 421326454 is 454623124.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421326457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105331612 + ... + 105331615.

It is an arithmetic number, because the mean of its divisors is an integer number (157997421).

Almost surely, 2^421326454 is an apocalyptic number.

421326454 is a deficient number, since it is larger than the sum of its proper divisors (210663230).

421326454 is a wasteful number, since it uses less digits than its factorization.

421326454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210663229.

The product of its digits is 23040, while the sum is 31.

The square root of 421326454 is about 20526.2381843337. The cubic root of 421326454 is about 749.6747947128.

Adding to 421326454 its reverse (454623124), we get a palindrome (875949578).

The spelling of 421326454 in words is "four hundred twenty-one million, three hundred twenty-six thousand, four hundred fifty-four".