1909468 has 12 divisors (see below), whose sum is σ = 3645432. Its totient is φ = 867920.

The previous prime is 1909463. The next prime is 1909477. The reversal of 1909468 is 8649091.

It is a super-4 number, since 4×1909468⁴ (a number of 26 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21655 + ... + 21742.

It is an arithmetic number, because the mean of its divisors is an integer number (303786).

2^1909468 is an apocalyptic number.

It is an amenable number.

1909468 is a deficient number, since it is larger than the sum of its proper divisors (1735964).

1909468 is a wasteful number, since it uses less digits than its factorization.

1909468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43412 (or 43410 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1909468 is about 1381.8350118592. The cubic root of 1909468 is about 124.0616238964.

The spelling of 1909468 in words is "one million, nine hundred nine thousand, four hundred sixty-eight".