45240045 has 32 divisors (see below), whose sum is σ = 76702080. Its totient is φ = 22705920.

The previous prime is 45240037. The next prime is 45240047. The reversal of 45240045 is 54004254.

It is not a de Polignac number, because 45240045 - 2³ = 45240037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45239997 and 45240024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45240047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51147 + ... + 52023.

It is an arithmetic number, because the mean of its divisors is an integer number (2396940).

Almost surely, 2^45240045 is an apocalyptic number.

It is an amenable number.

45240045 is a deficient number, since it is larger than the sum of its proper divisors (31462035).

45240045 is a wasteful number, since it uses less digits than its factorization.

45240045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

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

The square root of 45240045 is about 6726.0720335126. The cubic root of 45240045 is about 356.3206643449.

Adding to 45240045 its reverse (54004254), we get a palindrome (99244299).

The spelling of 45240045 in words is "forty-five million, two hundred forty thousand, forty-five".