403952805 has 16 divisors (see below), whose sum is σ = 718138560. Its totient is φ = 215441424.

The previous prime is 403952753. The next prime is 403952851. The reversal of 403952805 is 508259304.

It is not a de Polignac number, because 403952805 - 2⁷ = 403952677 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 403952805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1495987 + ... + 1496256.

It is an arithmetic number, because the mean of its divisors is an integer number (44883660).

Almost surely, 2^403952805 is an apocalyptic number.

403952805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

403952805 is a deficient number, since it is larger than the sum of its proper divisors (314185755).

403952805 is a wasteful number, since it uses less digits than its factorization.

403952805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992257 (or 2992251 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 403952805 is about 20098.5771884479. The cubic root of 403952805 is about 739.2253916634.

The spelling of 403952805 in words is "four hundred three million, nine hundred fifty-two thousand, eight hundred five".