405613344 has 48 divisors (see below), whose sum is σ = 1079749440. Its totient is φ = 133297920.

The previous prime is 405613333. The next prime is 405613379. The reversal of 405613344 is 443316504.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22939 + ... + 36570.

It is an arithmetic number, because the mean of its divisors is an integer number (22494780).

Almost surely, 2^405613344 is an apocalyptic number.

It is an amenable number.

405613344 is an abundant number, since it is smaller than the sum of its proper divisors (674136096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405613344 is a wasteful number, since it uses less digits than its factorization.

405613344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59593 (or 59585 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 405613344 is about 20139.8446865908. The cubic root of 405613344 is about 740.2369243798.

Adding to 405613344 its reverse (443316504), we get a palindrome (848929848).

The spelling of 405613344 in words is "four hundred five million, six hundred thirteen thousand, three hundred forty-four".