1909896 has 16 divisors (see below), whose sum is σ = 4774800. Its totient is φ = 636624.

The previous prime is 1909841. The next prime is 1909907. The reversal of 1909896 is 6989091.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39766 + ... + 39813.

It is an arithmetic number, because the mean of its divisors is an integer number (298425).

2^1909896 is an apocalyptic number.

It is an amenable number.

1909896 is an abundant number, since it is smaller than the sum of its proper divisors (2864904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1909896 is a wasteful number, since it uses less digits than its factorization.

1909896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79588 (or 79584 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 1909896 is about 1381.9898697169. The cubic root of 1909896 is about 124.0708925179.

The spelling of 1909896 in words is "one million, nine hundred nine thousand, eight hundred ninety-six".