421345325 has 12 divisors (see below), whose sum is σ = 523303188. Its totient is φ = 336537600.

The previous prime is 421345319. The next prime is 421345333. The reversal of 421345325 is 523543124.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 76983076 + 344362249 = 8774^2 + 18557^2 .

It is not a de Polignac number, because 421345325 - 2¹⁸ = 421083181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2879 + ... + 29171.

It is an arithmetic number, because the mean of its divisors is an integer number (43608599).

Almost surely, 2^421345325 is an apocalyptic number.

It is an amenable number.

421345325 is a deficient number, since it is larger than the sum of its proper divisors (101957863).

421345325 is a wasteful number, since it uses less digits than its factorization.

421345325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26944 (or 26939 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 421345325 is about 20526.6978591297. The cubic root of 421345325 is about 749.6859870647.

Adding to 421345325 its reverse (523543124), we get a palindrome (944888449).

The spelling of 421345325 in words is "four hundred twenty-one million, three hundred forty-five thousand, three hundred twenty-five".