7345633221 has 24 divisors (see below), whose sum is σ = 10787736960. Its totient is φ = 4815720000.

The previous prime is 7345633201. The next prime is 7345633223. The reversal of 7345633221 is 1223365437.

7345633221 is a `hidden beast` number, since 73 + 4 + 563 + 3 + 2 + 21 = 666.

It is not a de Polignac number, because 7345633221 - 2¹⁰ = 7345632197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7345633223) 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, 157881 + ... + 199041.

It is an arithmetic number, because the mean of its divisors is an integer number (449489040).

Almost surely, 2^7345633221 is an apocalyptic number.

It is an amenable number.

7345633221 is a deficient number, since it is larger than the sum of its proper divisors (3442103739).

7345633221 is a wasteful number, since it uses less digits than its factorization.

7345633221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41497 (or 41494 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 7345633221 is about 85706.6696412829. The cubic root of 7345633221 is about 1943.9111605556.

Adding to 7345633221 its reverse (1223365437), we get a palindrome (8568998658).

The spelling of 7345633221 in words is "seven billion, three hundred forty-five million, six hundred thirty-three thousand, two hundred twenty-one".