45124020 has 48 divisors (see below), whose sum is σ = 140387520. Its totient is φ = 12032928.

The previous prime is 45124007. The next prime is 45124021. The reversal of 45124020 is 2042154.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 45123984 and 45124002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45124021) 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 15 ways as a sum of consecutive naturals, for example, 41242 + ... + 42321.

It is an arithmetic number, because the mean of its divisors is an integer number (2924740).

Almost surely, 2^45124020 is an apocalyptic number.

It is an amenable number.

45124020 is an abundant number, since it is smaller than the sum of its proper divisors (95263500).

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

45124020 is a wasteful number, since it uses less digits than its factorization.

45124020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83581 (or 83573 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 45124020 is about 6717.4414772293. The cubic root of 45124020 is about 356.0157906559.

Adding to 45124020 its reverse (2042154), we get a palindrome (47166174).

The spelling of 45124020 in words is "forty-five million, one hundred twenty-four thousand, twenty".