408047855 has 16 divisors (see below), whose sum is σ = 530522784. Its totient is φ = 300088320.

The previous prime is 408047851. The next prime is 408047909. The reversal of 408047855 is 558740804.

It is not a de Polignac number, because 408047855 - 2² = 408047851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408047851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52166 + ... + 59475.

It is an arithmetic number, because the mean of its divisors is an integer number (33157674).

Almost surely, 2^408047855 is an apocalyptic number.

408047855 is a deficient number, since it is larger than the sum of its proper divisors (122474929).

408047855 is a wasteful number, since it uses less digits than its factorization.

408047855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111706.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 408047855 is about 20200.1944297574. The cubic root of 408047855 is about 741.7149505801.

The spelling of 408047855 in words is "four hundred eight million, forty-seven thousand, eight hundred fifty-five".