45090518 has 8 divisors (see below), whose sum is σ = 73784520. Its totient is φ = 20495680.

The previous prime is 45090517. The next prime is 45090559. The reversal of 45090518 is 81509054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45090517) 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 3 ways as a sum of consecutive naturals, for example, 1024763 + ... + 1024806.

It is an arithmetic number, because the mean of its divisors is an integer number (9223065).

Almost surely, 2^45090518 is an apocalyptic number.

45090518 is a deficient number, since it is larger than the sum of its proper divisors (28694002).

45090518 is a wasteful number, since it uses less digits than its factorization.

45090518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049582.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 45090518 is about 6714.9473564578. The cubic root of 45090518 is about 355.9276617318.

The spelling of 45090518 in words is "forty-five million, ninety thousand, five hundred eighteen".