45052440 has 64 divisors (see below), whose sum is σ = 138468960. Its totient is φ = 11719680.

The previous prime is 45052417. The next prime is 45052451. The reversal of 45052440 is 4425054.

45052440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 45052440.

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, 342 + ... + 9498.

Almost surely, 2^45052440 is an apocalyptic number.

45052440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45052440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69234480).

45052440 is an abundant number, since it is smaller than the sum of its proper divisors (93416520).

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

45052440 is a wasteful number, since it uses less digits than its factorization.

45052440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9212 (or 9208 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 45052440 is about 6712.1114412679. Note that the first 3 decimals coincide. The cubic root of 45052440 is about 355.8274423584.

Adding to 45052440 its reverse (4425054), we get a palindrome (49477494).

The spelling of 45052440 in words is "forty-five million, fifty-two thousand, four hundred forty".