3528138305 has 4 divisors (see below), whose sum is σ = 4233765972. Its totient is φ = 2822510640.

The previous prime is 3528138301. The next prime is 3528138311. The reversal of 3528138305 is 5038318253.

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 1086889024 + 2441249281 = 32968^2 + 49409^2 .

It is not a de Polignac number, because 3528138305 - 2² = 3528138301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3528138301) 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, 352813826 + ... + 352813835.

It is an arithmetic number, because the mean of its divisors is an integer number (1058441493).

Almost surely, 2^3528138305 is an apocalyptic number.

It is an amenable number.

3528138305 is a deficient number, since it is larger than the sum of its proper divisors (705627667).

3528138305 is an equidigital number, since it uses as much as digits as its factorization.

3528138305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705627666.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 3528138305 is about 59398.1338511573. The cubic root of 3528138305 is about 1522.3524148201.

The spelling of 3528138305 in words is "three billion, five hundred twenty-eight million, one hundred thirty-eight thousand, three hundred five".