45438207 has 4 divisors (see below), whose sum is σ = 60584280. Its totient is φ = 30292136.

The previous prime is 45438203. The next prime is 45438223. The reversal of 45438207 is 70283454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45438207 - 2² = 45438203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7573032 + ... + 7573037.

It is an arithmetic number, because the mean of its divisors is an integer number (15146070).

Almost surely, 2^45438207 is an apocalyptic number.

45438207 is a deficient number, since it is larger than the sum of its proper divisors (15146073).

45438207 is a wasteful number, since it uses less digits than its factorization.

45438207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15146072.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 45438207 is about 6740.7868235096. The cubic root of 45438207 is about 356.8401625805.

The spelling of 45438207 in words is "forty-five million, four hundred thirty-eight thousand, two hundred seven".