45633321 has 32 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 27848448.

The previous prime is 45633281. The next prime is 45633331. The reversal of 45633321 is 12333654.

It is a happy number.

45633321 is a `hidden beast` number, since 4 + 5 + 633 + 3 + 21 = 666.

45633321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45633321 - 2¹¹ = 45631273 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 (45633331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15640 + ... + 18326.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^45633321 is an apocalyptic number.

It is an amenable number.

45633321 is a deficient number, since it is larger than the sum of its proper divisors (27910359).

45633321 is a wasteful number, since it uses less digits than its factorization.

45633321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2744 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 45633321 is about 6755.2439630261. The cubic root of 45633321 is about 357.3501965809.

Adding to 45633321 its reverse (12333654), we get a palindrome (57966975).

It can be divided in two parts, 45633 and 321, that added together give a palindrome (45954).

The spelling of 45633321 in words is "forty-five million, six hundred thirty-three thousand, three hundred twenty-one".