405532673 has 16 divisors (see below), whose sum is σ = 509308800. Its totient is φ = 320857488.

The previous prime is 405532667. The next prime is 405532679. The reversal of 405532673 is 376235504.

It is an interprime number because it is at equal distance from previous prime (405532667) and next prime (405532679).

It is not a de Polignac number, because 405532673 - 2⁶ = 405532609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405532679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41015 + ... + 49932.

It is an arithmetic number, because the mean of its divisors is an integer number (31831800).

Almost surely, 2^405532673 is an apocalyptic number.

It is an amenable number.

405532673 is a deficient number, since it is larger than the sum of its proper divisors (103776127).

405532673 is an equidigital number, since it uses as much as digits as its factorization.

405532673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90981 (or 90967 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 35.

The square root of 405532673 is about 20137.8418158451. The cubic root of 405532673 is about 740.1878467601.

The spelling of 405532673 in words is "four hundred five million, five hundred thirty-two thousand, six hundred seventy-three".