408881 has 4 divisors (see below), whose sum is σ = 446064. Its totient is φ = 371700.

The previous prime is 408869. The next prime is 408911. The reversal of 408881 is 188804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 408881 - 2⁶ = 408817 is a prime.

It is a super-2 number, since 2×408881² = 334367344322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18575 + ... + 18596.

It is an arithmetic number, because the mean of its divisors is an integer number (111516).

2⁴⁰⁸⁸⁸¹ is an apocalyptic number.

It is an amenable number.

408881 is a deficient number, since it is larger than the sum of its proper divisors (37183).

408881 is a wasteful number, since it uses less digits than its factorization.

408881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37182.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 408881 is about 639.4380345272. The cubic root of 408881 is about 74.2219414288.

The spelling of 408881 in words is "four hundred eight thousand, eight hundred eighty-one".