408409475 has 12 divisors (see below), whose sum is σ = 507550104. Its totient is φ = 326003520.

The previous prime is 408409471. The next prime is 408409481. The reversal of 408409475 is 574904804.

It is not a de Polignac number, because 408409475 - 2² = 408409471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408409471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6449 + ... + 29298.

It is an arithmetic number, because the mean of its divisors is an integer number (42295842).

Almost surely, 2^408409475 is an apocalyptic number.

408409475 is a deficient number, since it is larger than the sum of its proper divisors (99140629).

408409475 is a wasteful number, since it uses less digits than its factorization.

408409475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36214 (or 36209 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 408409475 is about 20209.1433514635. The cubic root of 408409475 is about 741.9339933243.

The spelling of 408409475 in words is "four hundred eight million, four hundred nine thousand, four hundred seventy-five".