45434221 has 6 divisors (see below), whose sum is σ = 52852110. Its totient is φ = 38943576.

The previous prime is 45434209. The next prime is 45434231. The reversal of 45434221 is 12243454.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37515625 + 7918596 = 6125^2 + 2814^2 .

It is not a de Polignac number, because 45434221 - 2⁷ = 45434093 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 (45434231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463566 + ... + 463663.

It is an arithmetic number, because the mean of its divisors is an integer number (8808685).

Almost surely, 2^45434221 is an apocalyptic number.

It is an amenable number.

45434221 is a deficient number, since it is larger than the sum of its proper divisors (7417889).

45434221 is an equidigital number, since it uses as much as digits as its factorization.

45434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927243 (or 927236 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 45434221 is about 6740.4911542112. The cubic root of 45434221 is about 356.8297278489.

Adding to 45434221 its reverse (12243454), we get a palindrome (57677675).

The spelling of 45434221 in words is "forty-five million, four hundred thirty-four thousand, two hundred twenty-one".