45785819 has 8 divisors (see below), whose sum is σ = 46566720. Its totient is φ = 45009216.

The previous prime is 45785797. The next prime is 45785821. The reversal of 45785819 is 91858754.

45785819 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45785819 is a prime.

It is a super-2 number, since 2×45785819² = 4192682443001522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45785899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25937 + ... + 27645.

It is an arithmetic number, because the mean of its divisors is an integer number (5820840).

Almost surely, 2^45785819 is an apocalyptic number.

45785819 is a deficient number, since it is larger than the sum of its proper divisors (780901).

45785819 is a wasteful number, since it uses less digits than its factorization.

45785819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149.

The product of its digits is 403200, while the sum is 47.

The square root of 45785819 is about 6766.5219278445. The cubic root of 45785819 is about 357.7478197600.

The spelling of 45785819 in words is "forty-five million, seven hundred eighty-five thousand, eight hundred nineteen".