405288625 has 32 divisors (see below), whose sum is σ = 583315200. Its totient is φ = 275385600.

The previous prime is 405288617. The next prime is 405288629. The reversal of 405288625 is 526882504.

It is not a de Polignac number, because 405288625 - 2³ = 405288617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405288629) 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, 96826 + ... + 100924.

It is an arithmetic number, because the mean of its divisors is an integer number (18228600).

Almost surely, 2^405288625 is an apocalyptic number.

It is an amenable number.

405288625 is a deficient number, since it is larger than the sum of its proper divisors (178026575).

405288625 is a wasteful number, since it uses less digits than its factorization.

405288625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234 (or 4224 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 405288625 is about 20131.7814661296. The cubic root of 405288625 is about 740.0393362338.

The spelling of 405288625 in words is "four hundred five million, two hundred eighty-eight thousand, six hundred twenty-five".