421325454 has 64 divisors (see below), whose sum is σ = 962938368. Its totient is φ = 121651200.

The previous prime is 421325441. The next prime is 421325459. The reversal of 421325454 is 454523124.

It is a super-2 number, since 2×421325454² = 355030276376612232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421325459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656974 + ... + 657614.

It is an arithmetic number, because the mean of its divisors is an integer number (15045912).

Almost surely, 2^421325454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421325454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481469184).

421325454 is an abundant number, since it is smaller than the sum of its proper divisors (541612914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421325454 is a wasteful number, since it uses less digits than its factorization.

421325454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113.

The product of its digits is 19200, while the sum is 30.

The square root of 421325454 is about 20526.2138252528. The cubic root of 421325454 is about 749.6742016055.

Adding to 421325454 its reverse (454523124), we get a palindrome (875848578).

It can be divided in two parts, 42132 and 5454, that added together give a triangular number (47586 = T₃₀₈).

The spelling of 421325454 in words is "four hundred twenty-one million, three hundred twenty-five thousand, four hundred fifty-four".