45440045 has 16 divisors (see below), whose sum is σ = 62674560. Its totient is φ = 30980544.

The previous prime is 45440009. The next prime is 45440047. The reversal of 45440045 is 54004454.

It is not a de Polignac number, because 45440045 - 2⁶ = 45439981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45439996 and 45440023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45440047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2639 + ... + 9891.

It is an arithmetic number, because the mean of its divisors is an integer number (3917160).

Almost surely, 2^45440045 is an apocalyptic number.

It is an amenable number.

45440045 is a deficient number, since it is larger than the sum of its proper divisors (17234515).

45440045 is a wasteful number, since it uses less digits than its factorization.

45440045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 45440045 is about 6740.9231563637. The cubic root of 45440045 is about 356.8449739747.

Adding to 45440045 its reverse (54004454), we get a palindrome (99444499).

The spelling of 45440045 in words is "forty-five million, four hundred forty thousand, forty-five".