405464047 has 16 divisors (see below), whose sum is σ = 442552320. Its totient is φ = 370180800.

The previous prime is 405464039. The next prime is 405464063. The reversal of 405464047 is 740464504.

It is not a de Polignac number, because 405464047 - 2³ = 405464039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405464027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61522 + ... + 67792.

It is an arithmetic number, because the mean of its divisors is an integer number (27659520).

Almost surely, 2^405464047 is an apocalyptic number.

405464047 is a deficient number, since it is larger than the sum of its proper divisors (37088273).

405464047 is a wasteful number, since it uses less digits than its factorization.

405464047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414.

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 405464047 is about 20136.1378372318. The cubic root of 405464047 is about 740.1460918041.

The spelling of 405464047 in words is "four hundred five million, four hundred sixty-four thousand, forty-seven".