405411625 has 8 divisors (see below), whose sum is σ = 505953864. Its totient is φ = 324329200.

The previous prime is 405411599. The next prime is 405411641. The reversal of 405411625 is 526114504.

It can be written as a sum of positive squares in 4 ways, for example, as 49674304 + 355737321 = 7048^2 + 18861^2 .

It is not a de Polignac number, because 405411625 - 2⁷ = 405411497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405411593 and 405411602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621522 + ... + 1621771.

It is an arithmetic number, because the mean of its divisors is an integer number (63244233).

Almost surely, 2^405411625 is an apocalyptic number.

It is an amenable number.

405411625 is a deficient number, since it is larger than the sum of its proper divisors (100542239).

405411625 is an equidigital number, since it uses as much as digits as its factorization.

405411625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243308 (or 3243298 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 405411625 is about 20134.8361056156. The cubic root of 405411625 is about 740.1141928717.

The spelling of 405411625 in words is "four hundred five million, four hundred eleven thousand, six hundred twenty-five".