405088916 has 12 divisors (see below), whose sum is σ = 709324980. Its totient is φ = 202424640.

The previous prime is 405088891. The next prime is 405088919. The reversal of 405088916 is 619880504.

It can be written as a sum of positive squares in 2 ways, for example, as 36602500 + 368486416 = 6050^2 + 19196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405088919) 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 3 ways as a sum of consecutive naturals, for example, 22121 + ... + 36048.

It is an arithmetic number, because the mean of its divisors is an integer number (59110415).

Almost surely, 2^405088916 is an apocalyptic number.

It is an amenable number.

405088916 is a deficient number, since it is larger than the sum of its proper divisors (304236064).

405088916 is a wasteful number, since it uses less digits than its factorization.

405088916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59914 (or 59912 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 405088916 is about 20126.8208120408. The cubic root of 405088916 is about 739.9177629577.

The spelling of 405088916 in words is "four hundred five million, eighty-eight thousand, nine hundred sixteen".