45790209 has 24 divisors (see below), whose sum is σ = 69919200. Its totient is φ = 28797120.

The previous prime is 45790207. The next prime is 45790211. The reversal of 45790209 is 90209754.

It is an interprime number because it is at equal distance from previous prime (45790207) and next prime (45790211).

It is not a de Polignac number, because 45790209 - 2¹ = 45790207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45790207) 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 23 ways as a sum of consecutive naturals, for example, 56197 + ... + 57005.

It is an arithmetic number, because the mean of its divisors is an integer number (2913300).

Almost surely, 2^45790209 is an apocalyptic number.

It is an amenable number.

45790209 is a deficient number, since it is larger than the sum of its proper divisors (24128991).

45790209 is a wasteful number, since it uses less digits than its factorization.

45790209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 45790209 is about 6766.8463112443. The cubic root of 45790209 is about 357.7592531599.

The spelling of 45790209 in words is "forty-five million, seven hundred ninety thousand, two hundred nine".