45045238 has 16 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 18288936.

The previous prime is 45045227. The next prime is 45045241. The reversal of 45045238 is 83254054.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84406 + ... + 84937.

It is an arithmetic number, because the mean of its divisors is an integer number (5080320).

Almost surely, 2^45045238 is an apocalyptic number.

45045238 is a deficient number, since it is larger than the sum of its proper divisors (36239882).

45045238 is a wasteful number, since it uses less digits than its factorization.

45045238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169371.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 45045238 is about 6711.5749269452. The cubic root of 45045238 is about 355.8084807084.

The spelling of 45045238 in words is "forty-five million, forty-five thousand, two hundred thirty-eight".