405320050 has 12 divisors (see below), whose sum is σ = 753895386. Its totient is φ = 162128000.

The previous prime is 405320033. The next prime is 405320059. The reversal of 405320050 is 50023504.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 298011169 + 107308881 = 17263^2 + 10359^2 .

It is not an unprimeable number, because it can be changed into a prime (405320059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4053151 + ... + 4053250.

Almost surely, 2^405320050 is an apocalyptic number.

405320050 is a deficient number, since it is larger than the sum of its proper divisors (348575336).

405320050 is a wasteful number, since it uses less digits than its factorization.

405320050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8106413 (or 8106408 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 405320050 is about 20132.5619333457. The cubic root of 405320050 is about 740.0584626322.

Adding to 405320050 its reverse (50023504), we get a palindrome (455343554).

The spelling of 405320050 in words is "four hundred five million, three hundred twenty thousand, fifty".