45840349 has 2 divisors, whose sum is σ = 45840350. Its totient is φ = 45840348.

The previous prime is 45840323. The next prime is 45840391. The reversal of 45840349 is 94304854.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40411449 + 5428900 = 6357^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 45840349 - 2⁵ = 45840317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45840649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22920174 + 22920175.

It is an arithmetic number, because the mean of its divisors is an integer number (22920175).

Almost surely, 2^45840349 is an apocalyptic number.

It is an amenable number.

45840349 is a deficient number, since it is larger than the sum of its proper divisors (1).

45840349 is an equidigital number, since it uses as much as digits as its factorization.

45840349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 45840349 is about 6770.5501253591. The cubic root of 45840349 is about 357.8897869281.

The spelling of 45840349 in words is "forty-five million, eight hundred forty thousand, three hundred forty-nine".