481636369 has 4 divisors (see below), whose sum is σ = 481907380. Its totient is φ = 481365360.

The previous prime is 481636361. The next prime is 481636409. The reversal of 481636369 is 963636184.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 441504144 + 40132225 = 21012^2 + 6335^2 .

It is a cyclic number.

It is not a de Polignac number, because 481636369 - 2³ = 481636361 is a prime.

It is a super-2 number, since 2×481636369² = 463947183887008322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481636361) 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, 132822 + ... + 136399.

It is an arithmetic number, because the mean of its divisors is an integer number (120476845).

Almost surely, 2^481636369 is an apocalyptic number.

It is an amenable number.

481636369 is a deficient number, since it is larger than the sum of its proper divisors (271011).

481636369 is a wasteful number, since it uses less digits than its factorization.

481636369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271010.

The product of its digits is 559872, while the sum is 46.

The square root of 481636369 is about 21946.2153684867. The cubic root of 481636369 is about 783.8622646286.

The spelling of 481636369 in words is "four hundred eighty-one million, six hundred thirty-six thousand, three hundred sixty-nine".