405430125 has 32 divisors (see below), whose sum is σ = 687398400. Its totient is φ = 212139200.

The previous prime is 405430111. The next prime is 405430141. The reversal of 405430125 is 521034504.

It is not a de Polignac number, because 405430125 - 2⁶ = 405430061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405430095 and 405430104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9676 + ... + 30074.

It is an arithmetic number, because the mean of its divisors is an integer number (21481200).

Almost surely, 2^405430125 is an apocalyptic number.

It is an amenable number.

405430125 is a deficient number, since it is larger than the sum of its proper divisors (281968275).

405430125 is a wasteful number, since it uses less digits than its factorization.

405430125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20470 (or 20460 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 405430125 is about 20135.2955031705. The cubic root of 405430125 is about 740.1254504870.

Adding to 405430125 its reverse (521034504), we get a palindrome (926464629).

The spelling of 405430125 in words is "four hundred five million, four hundred thirty thousand, one hundred twenty-five".