3523540321 has 16 divisors (see below), whose sum is σ = 4245258240. Its totient is φ = 2860557840.

The previous prime is 3523540289. The next prime is 3523540327. The reversal of 3523540321 is 1230453253.

It is not a de Polignac number, because 3523540321 - 2⁵ = 3523540289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3523540321.

It is not an unprimeable number, because it can be changed into a prime (3523540327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162541 + ... + 182938.

It is an arithmetic number, because the mean of its divisors is an integer number (265328640).

Almost surely, 2^3523540321 is an apocalyptic number.

3523540321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3523540321 is a deficient number, since it is larger than the sum of its proper divisors (721717919).

3523540321 is a wasteful number, since it uses less digits than its factorization.

3523540321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345564.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 3523540321 is about 59359.4164476033. The cubic root of 3523540321 is about 1521.6908010159.

Adding to 3523540321 its reverse (1230453253), we get a palindrome (4753993574).

The spelling of 3523540321 in words is "three billion, five hundred twenty-three million, five hundred forty thousand, three hundred twenty-one".