2019345 has 16 divisors (see below), whose sum is σ = 3421440. Its totient is φ = 1013504.

The previous prime is 2019343. The next prime is 2019361. The reversal of 2019345 is 5439102.

It is a cyclic number.

It is not a de Polignac number, because 2019345 - 2¹ = 2019343 is a prime.

2019345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2019343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3705 + ... + 4214.

It is an arithmetic number, because the mean of its divisors is an integer number (213840).

2^2019345 is an apocalyptic number.

It is an amenable number.

2019345 is a deficient number, since it is larger than the sum of its proper divisors (1402095).

2019345 is a wasteful number, since it uses less digits than its factorization.

2019345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2019345 is about 1421.0365934767. The cubic root of 2019345 is about 126.3970218080.

The spelling of 2019345 in words is "two million, nineteen thousand, three hundred forty-five".