408745089 has 8 divisors (see below), whose sum is σ = 605548320. Its totient is φ = 272496708.

The previous prime is 408745067. The next prime is 408745147. The reversal of 408745089 is 980547804.

408745089 is a `hidden beast` number, since 40 + 87 + 450 + 89 = 666.

It is not a de Polignac number, because 408745089 - 2⁹ = 408744577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (408745039) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7569327 + ... + 7569380.

It is an arithmetic number, because the mean of its divisors is an integer number (75693540).

Almost surely, 2^408745089 is an apocalyptic number.

It is an amenable number.

408745089 is a deficient number, since it is larger than the sum of its proper divisors (196803231).

408745089 is a wasteful number, since it uses less digits than its factorization.

408745089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15138716 (or 15138710 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 408745089 is about 20217.4451650054. The cubic root of 408745089 is about 742.1371678952.

The spelling of 408745089 in words is "four hundred eight million, seven hundred forty-five thousand, eighty-nine".