405342433 has 2 divisors, whose sum is σ = 405342434. Its totient is φ = 405342432.

The previous prime is 405342361. The next prime is 405342461. The reversal of 405342433 is 334243504.

It is an a-pointer prime, because the next prime (405342461) can be obtained adding 405342433 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206870689 + 198471744 = 14383^2 + 14088^2 .

It is a cyclic number.

It is not a de Polignac number, because 405342433 - 2⁹ = 405341921 is a prime.

It is not a weakly prime, because it can be changed into another prime (405342473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202671216 + 202671217.

It is an arithmetic number, because the mean of its divisors is an integer number (202671217).

Almost surely, 2^405342433 is an apocalyptic number.

It is an amenable number.

405342433 is a deficient number, since it is larger than the sum of its proper divisors (1).

405342433 is an equidigital number, since it uses as much as digits as its factorization.

405342433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 405342433 is about 20133.1178161754. The cubic root of 405342433 is about 740.0720851375.

Adding to 405342433 its reverse (334243504), we get a palindrome (739585937).

The spelling of 405342433 in words is "four hundred five million, three hundred forty-two thousand, four hundred thirty-three".