45628291 has 4 divisors (see below), whose sum is σ = 48029800. Its totient is φ = 43226784.

The previous prime is 45628259. The next prime is 45628301. The reversal of 45628291 is 19282654.

45628291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45628291 - 2⁵ = 45628259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45628291.

It is not an unprimeable number, because it can be changed into a prime (45628091) 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, 1200726 + ... + 1200763.

It is an arithmetic number, because the mean of its divisors is an integer number (12007450).

Almost surely, 2^45628291 is an apocalyptic number.

45628291 is a deficient number, since it is larger than the sum of its proper divisors (2401509).

45628291 is a wasteful number, since it uses less digits than its factorization.

45628291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401508.

The product of its digits is 34560, while the sum is 37.

The square root of 45628291 is about 6754.8716494098. The cubic root of 45628291 is about 357.3370662813.

The spelling of 45628291 in words is "forty-five million, six hundred twenty-eight thousand, two hundred ninety-one".