45272220 has 48 divisors (see below), whose sum is σ = 144872448. Its totient is φ = 10347840.

The previous prime is 45272189. The next prime is 45272237. The reversal of 45272220 is 2227254.

45272220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 53476 + ... + 54315.

It is an arithmetic number, because the mean of its divisors is an integer number (3018176).

Almost surely, 2^45272220 is an apocalyptic number.

It is an amenable number.

45272220 is an abundant number, since it is smaller than the sum of its proper divisors (99600228).

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

45272220 is a wasteful number, since it uses less digits than its factorization.

45272220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107810 (or 107808 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 45272220 is about 6728.4634204252. The cubic root of 45272220 is about 356.4051168143.

Adding to 45272220 its reverse (2227254), we get a palindrome (47499474).

The spelling of 45272220 in words is "forty-five million, two hundred seventy-two thousand, two hundred twenty".