3628731481 has 8 divisors (see below), whose sum is σ = 3858968520. Its totient is φ = 3400359168.

The previous prime is 3628731437. The next prime is 3628731499. The reversal of 3628731481 is 1841378263.

It can be written as a sum of positive squares in 4 ways, for example, as 2103047881 + 1525683600 = 45859^2 + 39060^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3628731481 - 2⁹ = 3628730969 is a prime.

It is a super-2 number, since 2×3628731481² = 26335384322400906722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3628771481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462166 + ... + 469951.

It is an arithmetic number, because the mean of its divisors is an integer number (482371065).

Almost surely, 2^3628731481 is an apocalyptic number.

It is an amenable number.

3628731481 is a deficient number, since it is larger than the sum of its proper divisors (230237039).

3628731481 is a wasteful number, since it uses less digits than its factorization.

3628731481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932363.

The product of its digits is 193536, while the sum is 43.

The square root of 3628731481 is about 60238.9531864557. The cubic root of 3628731481 is about 1536.6853259660.

The spelling of 3628731481 in words is "three billion, six hundred twenty-eight million, seven hundred thirty-one thousand, four hundred eighty-one".