1908949 has 16 divisors (see below), whose sum is σ = 2375680. Its totient is φ = 1496880.

The previous prime is 1908943. The next prime is 1908967. The reversal of 1908949 is 9498091.

It is not a de Polignac number, because 1908949 - 2¹³ = 1900757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1908943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3892 + ... + 4354.

It is an arithmetic number, because the mean of its divisors is an integer number (148480).

2^1908949 is an apocalyptic number.

1908949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1908949 is a deficient number, since it is larger than the sum of its proper divisors (466731).

1908949 is a wasteful number, since it uses less digits than its factorization.

1908949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1908949 is about 1381.6472053314. The cubic root of 1908949 is about 124.0503827519.

The spelling of 1908949 in words is "one million, nine hundred eight thousand, nine hundred forty-nine".