45391238 has 8 divisors (see below), whose sum is σ = 68607000. Its totient is φ = 22522240.

The previous prime is 45391231. The next prime is 45391253. The reversal of 45391238 is 83219354.

45391238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 45391198 and 45391207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45391231) 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 3 ways as a sum of consecutive naturals, for example, 86363 + ... + 86886.

It is an arithmetic number, because the mean of its divisors is an integer number (8575875).

Almost surely, 2^45391238 is an apocalyptic number.

45391238 is a deficient number, since it is larger than the sum of its proper divisors (23215762).

45391238 is a wasteful number, since it uses less digits than its factorization.

45391238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173382.

The product of its digits is 25920, while the sum is 35.

The square root of 45391238 is about 6737.3019822478. The cubic root of 45391238 is about 356.7171662077.

The spelling of 45391238 in words is "forty-five million, three hundred ninety-one thousand, two hundred thirty-eight".