1941309 has 12 divisors (see below), whose sum is σ = 2873052. Its totient is φ = 1262400.

The previous prime is 1941307. The next prime is 1941323. The reversal of 1941309 is 9031491.

It can be written as a sum of positive squares in 2 ways, for example, as 675684 + 1265625 = 822^2 + 1125^2 .

It is not a de Polignac number, because 1941309 - 2¹ = 1941307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2262 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (239421).

2^1941309 is an apocalyptic number.

It is an amenable number.

1941309 is a deficient number, since it is larger than the sum of its proper divisors (931743).

1941309 is a wasteful number, since it uses less digits than its factorization.

1941309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308 (or 5305 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1941309 is about 1393.3086520940. The cubic root of 1941309 is about 124.7474152848.

It can be divided in two parts, 19 and 41309, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 1941309 in words is "one million, nine hundred forty-one thousand, three hundred nine".