3223521445 has 24 divisors (see below), whose sum is σ = 3991150944. Its totient is φ = 2497990656.

The previous prime is 3223521443. The next prime is 3223521473. The reversal of 3223521445 is 5441253223.

It is not a de Polignac number, because 3223521445 - 2¹ = 3223521443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223521443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12542757 + ... + 12543013.

It is an arithmetic number, because the mean of its divisors is an integer number (166297956).

Almost surely, 2^3223521445 is an apocalyptic number.

It is an amenable number.

3223521445 is a deficient number, since it is larger than the sum of its proper divisors (767629499).

3223521445 is an equidigital number, since it uses as much as digits as its factorization.

3223521445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 532 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 3223521445 is about 56776.0640146884. The cubic root of 3223521445 is about 1477.2143616368.

Adding to 3223521445 its reverse (5441253223), we get a palindrome (8664774668).

The spelling of 3223521445 in words is "three billion, two hundred twenty-three million, five hundred twenty-one thousand, four hundred forty-five".