45220540 has 24 divisors (see below), whose sum is σ = 97281072. Its totient is φ = 17646720.

The previous prime is 45220531. The next prime is 45220543. The reversal of 45220540 is 4502254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26754 + ... + 28393.

It is an arithmetic number, because the mean of its divisors is an integer number (4053378).

Almost surely, 2^45220540 is an apocalyptic number.

It is an amenable number.

45220540 is an abundant number, since it is smaller than the sum of its proper divisors (52060532).

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

45220540 is a wasteful number, since it uses less digits than its factorization.

45220540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55197 (or 55195 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 45220540 is about 6724.6219224578. The cubic root of 45220540 is about 356.2694484099.

Adding to 45220540 its reverse (4502254), we get a palindrome (49722794).

The spelling of 45220540 in words is "forty-five million, two hundred twenty thousand, five hundred forty".