45326221 has 12 divisors (see below), whose sum is σ = 47157012. Its totient is φ = 43561728.

The previous prime is 45326213. The next prime is 45326249. The reversal of 45326221 is 12262354.

It can be written as a sum of positive squares in 6 ways, for example, as 7022500 + 38303721 = 2650^2 + 6189^2 .

It is not a de Polignac number, because 45326221 - 2³ = 45326213 is a prime.

It is a Duffinian number.

Its product of digits (2880) is a multiple of the sum of its prime factors (480).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45326251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154551 + ... + 154843.

It is an arithmetic number, because the mean of its divisors is an integer number (3929751).

Almost surely, 2^45326221 is an apocalyptic number.

It is an amenable number.

45326221 is a deficient number, since it is larger than the sum of its proper divisors (1830791).

45326221 is a wasteful number, since it uses less digits than its factorization.

45326221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 443 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 45326221 is about 6732.4751020706. The cubic root of 45326221 is about 356.5467679596.

Adding to 45326221 its reverse (12262354), we get a palindrome (57588575).

The spelling of 45326221 in words is "forty-five million, three hundred twenty-six thousand, two hundred twenty-one".