3238638481 has 8 divisors (see below), whose sum is σ = 3608032680. Its totient is φ = 2886425472.

The previous prime is 3238638463. The next prime is 3238638493. The reversal of 3238638481 is 1848368323.

It can be written as a sum of positive squares in 4 ways, for example, as 104878081 + 3133760400 = 10241^2 + 55980^2 .

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 3238638481 - 2¹³ = 3238630289 is a prime.

It is a super-2 number, since 2×3238638481² = 20977558421227974722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3238638401) 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, 4294900 + ... + 4295653.

It is an arithmetic number, because the mean of its divisors is an integer number (451004085).

Almost surely, 2^3238638481 is an apocalyptic number.

It is an amenable number.

3238638481 is a deficient number, since it is larger than the sum of its proper divisors (369394199).

3238638481 is a wasteful number, since it uses less digits than its factorization.

3238638481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590595.

The product of its digits is 663552, while the sum is 46.

The square root of 3238638481 is about 56909.0369010055. The cubic root of 3238638481 is about 1479.5199442868.

The spelling of 3238638481 in words is "three billion, two hundred thirty-eight million, six hundred thirty-eight thousand, four hundred eighty-one".