405379625 has 16 divisors (see below), whose sum is σ = 578188416. Its totient is φ = 277974000.

The previous prime is 405379621. The next prime is 405379643. The reversal of 405379625 is 526973504.

It is not a de Polignac number, because 405379625 - 2² = 405379621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405379621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230771 + ... + 232520.

It is an arithmetic number, because the mean of its divisors is an integer number (36136776).

Almost surely, 2^405379625 is an apocalyptic number.

It is an amenable number.

405379625 is a deficient number, since it is larger than the sum of its proper divisors (172808791).

405379625 is an equidigital number, since it uses as much as digits as its factorization.

405379625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463313 (or 463303 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 405379625 is about 20134.0414472604. The cubic root of 405379625 is about 740.0947194313.

The spelling of 405379625 in words is "four hundred five million, three hundred seventy-nine thousand, six hundred twenty-five".