45841221 has 24 divisors (see below), whose sum is σ = 69660864. Its totient is φ = 30119040.

The previous prime is 45841217. The next prime is 45841241. The reversal of 45841221 is 12214854.

It is not a de Polignac number, because 45841221 - 2² = 45841217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45841241) 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, 15925 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (2902536).

Almost surely, 2^45841221 is an apocalyptic number.

It is an amenable number.

45841221 is a deficient number, since it is larger than the sum of its proper divisors (23819643).

45841221 is an equidigital number, since it uses as much as digits as its factorization.

45841221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743 (or 2731 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 45841221 is about 6770.6145215926. The cubic root of 45841221 is about 357.8920562383.

The spelling of 45841221 in words is "forty-five million, eight hundred forty-one thousand, two hundred twenty-one".