45364221 has 24 divisors (see below), whose sum is σ = 75246080. Its totient is φ = 25798176.

The previous prime is 45364217. The next prime is 45364223. The reversal of 45364221 is 12246354.

It is not a de Polignac number, because 45364221 - 2² = 45364217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45364223) 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, 12435 + ... + 15663.

Almost surely, 2^45364221 is an apocalyptic number.

It is an amenable number.

45364221 is a deficient number, since it is larger than the sum of its proper divisors (29881859).

45364221 is a wasteful number, since it uses less digits than its factorization.

45364221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3462 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 45364221 is about 6735.2966527095. The cubic root of 45364221 is about 356.6463791219.

The spelling of 45364221 in words is "forty-five million, three hundred sixty-four thousand, two hundred twenty-one".