405324499 has 2 divisors, whose sum is σ = 405324500. Its totient is φ = 405324498.

The previous prime is 405324497. The next prime is 405324533. The reversal of 405324499 is 994423504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405324499 - 2¹ = 405324497 is a prime.

Together with 405324497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (405324497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202662249 + 202662250.

It is an arithmetic number, because the mean of its divisors is an integer number (202662250).

Almost surely, 2^405324499 is an apocalyptic number.

405324499 is a deficient number, since it is larger than the sum of its proper divisors (1).

405324499 is an equidigital number, since it uses as much as digits as its factorization.

405324499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 405324499 is about 20132.6724256866. The cubic root of 405324499 is about 740.0611703755.

The spelling of 405324499 in words is "four hundred five million, three hundred twenty-four thousand, four hundred ninety-nine".