481884138 has 24 divisors (see below), whose sum is σ = 1066298688. Its totient is φ = 157210152.

The previous prime is 481884131. The next prime is 481884163. The reversal of 481884138 is 831488184.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 481884093 and 481884102.

It is not an unprimeable number, because it can be changed into a prime (481884131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283956 + ... + 285647.

It is an arithmetic number, because the mean of its divisors is an integer number (44429112).

Almost surely, 2^481884138 is an apocalyptic number.

481884138 is an abundant number, since it is smaller than the sum of its proper divisors (584414550).

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

481884138 is a wasteful number, since it uses less digits than its factorization.

481884138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569658 (or 569655 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 481884138 is about 21951.8595567665. The cubic root of 481884138 is about 783.9966561099.

It can be divided in two parts, 48188 and 4138, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 481884138 in words is "four hundred eighty-one million, eight hundred eighty-four thousand, one hundred thirty-eight".