1945349 has 18 divisors (see below), whose sum is σ = 2405970. Its totient is φ = 1566432.

The previous prime is 1945337. The next prime is 1945369. The reversal of 1945349 is 9435491.

It can be written as a sum of positive squares in 3 ways, for example, as 1117249 + 828100 = 1057^2 + 910^2 .

It is not a de Polignac number, because 1945349 - 2⁸ = 1945093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945309) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52559 + ... + 52595.

It is an arithmetic number, because the mean of its divisors is an integer number (133665).

2^1945349 is an apocalyptic number.

It is an amenable number.

1945349 is a deficient number, since it is larger than the sum of its proper divisors (460621).

1945349 is an equidigital number, since it uses as much as digits as its factorization.

1945349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 73 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 1945349 is about 1394.7576850478. The cubic root of 1945349 is about 124.8338913611.

The spelling of 1945349 in words is "one million, nine hundred forty-five thousand, three hundred forty-nine".