411491808 has 216 divisors, whose sum is σ = 1466593128. Its totient is φ = 108476928.

The previous prime is 411491807. The next prime is 411491809. The reversal of 411491808 is 808194114.

It is an interprime number because it is at equal distance from previous prime (411491807) and next prime (411491809).

It is a super-2 number, since 2×411491808² = 338651016102217728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411491807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 182335 + ... + 184577.

It is an arithmetic number, because the mean of its divisors is an integer number (6789783).

Almost surely, 2^411491808 is an apocalyptic number.

411491808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 411491808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733296564).

411491808 is an abundant number, since it is smaller than the sum of its proper divisors (1055101320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

411491808 is a wasteful number, since it uses less digits than its factorization.

411491808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 411491808 is about 20285.2608560994. The cubic root of 411491808 is about 743.7958163241.

The spelling of 411491808 in words is "four hundred eleven million, four hundred ninety-one thousand, eight hundred eight".