409013875 has 16 divisors (see below), whose sum is σ = 511029792. Its totient is φ = 326839200.

The previous prime is 409013861. The next prime is 409013903. The reversal of 409013875 is 578310904.

It is not a de Polignac number, because 409013875 - 2¹³ = 409005683 is a prime.

It is a Duffinian 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, 177229 + ... + 179521.

It is an arithmetic number, because the mean of its divisors is an integer number (31939362).

Almost surely, 2^409013875 is an apocalyptic number.

409013875 is a deficient number, since it is larger than the sum of its proper divisors (102015917).

409013875 is a wasteful number, since it uses less digits than its factorization.

409013875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735 (or 3725 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 409013875 is about 20224.0914505448. The cubic root of 409013875 is about 742.2998058308.

The spelling of 409013875 in words is "four hundred nine million, thirteen thousand, eight hundred seventy-five".