45011540 has 48 divisors (see below), whose sum is σ = 110554752. Its totient is φ = 15071616.

The previous prime is 45011537. The next prime is 45011543. The reversal of 45011540 is 4511054.

45011540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45011537) and next prime (45011543).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45011543) by changing a digit.

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, 2282 + ... + 9758.

It is an arithmetic number, because the mean of its divisors is an integer number (2303224).

Almost surely, 2^45011540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45011540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55277376).

45011540 is an abundant number, since it is smaller than the sum of its proper divisors (65543212).

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

45011540 is a wasteful number, since it uses less digits than its factorization.

45011540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536 (or 7534 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 45011540 is about 6709.0640181772. The cubic root of 45011540 is about 355.7197327012.

Adding to 45011540 its reverse (4511054), we get a palindrome (49522594).

The spelling of 45011540 in words is "forty-five million, eleven thousand, five hundred forty".