481139408 has 20 divisors (see below), whose sum is σ = 936215748. Its totient is φ = 239535360.

The previous prime is 481139401. The next prime is 481139411. The reversal of 481139408 is 804931184.

It can be written as a sum of positive squares in 2 ways, for example, as 243609664 + 237529744 = 15608^2 + 15412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481139401) 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, 60803 + ... + 68258.

Almost surely, 2^481139408 is an apocalyptic number.

It is an amenable number.

481139408 is a deficient number, since it is larger than the sum of its proper divisors (455076340).

481139408 is a wasteful number, since it uses less digits than its factorization.

481139408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129302 (or 129296 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 481139408 is about 21934.8901980384. The cubic root of 481139408 is about 783.5925708250.

The spelling of 481139408 in words is "four hundred eighty-one million, one hundred thirty-nine thousand, four hundred eight".