1909364 has 6 divisors (see below), whose sum is σ = 3341394. Its totient is φ = 954680.

The previous prime is 1909363. The next prime is 1909373. The reversal of 1909364 is 4639091.

It can be written as a sum of positive squares in only one way, i.e., 1669264 + 240100 = 1292^2 + 490^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1909364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238667 + ... + 238674.

It is an arithmetic number, because the mean of its divisors is an integer number (556899).

2^1909364 is an apocalyptic number.

It is an amenable number.

1909364 is a deficient number, since it is larger than the sum of its proper divisors (1432030).

1909364 is a wasteful number, since it uses less digits than its factorization.

1909364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477345 (or 477343 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1909364 is about 1381.7973802262. The cubic root of 1909364 is about 124.0593714989.

The spelling of 1909364 in words is "one million, nine hundred nine thousand, three hundred sixty-four".