420324625 has 32 divisors (see below), whose sum is σ = 615753216. Its totient is φ = 280411200.

The previous prime is 420324617. The next prime is 420324649. The reversal of 420324625 is 526423024.

It is not a de Polignac number, because 420324625 - 2³ = 420324617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420324593 and 420324602.

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, 25884 + ... + 38866.

It is an arithmetic number, because the mean of its divisors is an integer number (19242288).

Almost surely, 2^420324625 is an apocalyptic number.

It is an amenable number.

420324625 is a deficient number, since it is larger than the sum of its proper divisors (195428591).

420324625 is a wasteful number, since it uses less digits than its factorization.

420324625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13042 (or 13032 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 420324625 is about 20501.8200411573. The cubic root of 420324625 is about 749.0801315098.

Adding to 420324625 its reverse (526423024), we get a palindrome (946747649).

The spelling of 420324625 in words is "four hundred twenty million, three hundred twenty-four thousand, six hundred twenty-five".