45222732 has 48 divisors (see below), whose sum is σ = 120423520. Its totient is φ = 14665536.

The previous prime is 45222689. The next prime is 45222757. The reversal of 45222732 is 23722254.

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

It is a junction number, because it is equal to n+sod(n) for n = 45222696 and 45222705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1663 + ... + 9654.

Almost surely, 2^45222732 is an apocalyptic number.

It is an amenable number.

45222732 is an abundant number, since it is smaller than the sum of its proper divisors (75200788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45222732 is a wasteful number, since it uses less digits than its factorization.

45222732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11367 (or 11359 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 45222732 is about 6724.7849036233. The cubic root of 45222732 is about 356.2752048649.

Adding to 45222732 its reverse (23722254), we get a palindrome (68944986).

It can be divided in two parts, 45222 and 732, that added together give a palindrome (45954).

The spelling of 45222732 in words is "forty-five million, two hundred twenty-two thousand, seven hundred thirty-two".