405920299 has 2 divisors, whose sum is σ = 405920300. Its totient is φ = 405920298.

The previous prime is 405920297. The next prime is 405920357. The reversal of 405920299 is 992029504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405920299 - 2¹ = 405920297 is a prime.

Together with 405920297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (405920297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202960149 + 202960150.

It is an arithmetic number, because the mean of its divisors is an integer number (202960150).

Almost surely, 2^405920299 is an apocalyptic number.

405920299 is a deficient number, since it is larger than the sum of its proper divisors (1).

405920299 is an equidigital number, since it uses as much as digits as its factorization.

405920299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 405920299 is about 20147.4638354310. The cubic root of 405920299 is about 740.4236063805.

The spelling of 405920299 in words is "four hundred five million, nine hundred twenty thousand, two hundred ninety-nine".