481781808 has 60 divisors (see below), whose sum is σ = 1357310448. Its totient is φ = 159523200.

The previous prime is 481781801. The next prime is 481781809. The reversal of 481781808 is 808187184.

It is a super-2 number, since 2×481781808² = 464227421039497728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (481781801) 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, 10666 + ... + 32822.

Almost surely, 2^481781808 is an apocalyptic number.

481781808 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 481781808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678655224).

481781808 is an abundant number, since it is smaller than the sum of its proper divisors (875528640).

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

481781808 is a wasteful number, since it uses less digits than its factorization.

481781808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22322 (or 22313 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 45.

The square root of 481781808 is about 21949.5286509756. The cubic root of 481781808 is about 783.9411572524.

The spelling of 481781808 in words is "four hundred eighty-one million, seven hundred eighty-one thousand, eight hundred eight".