1908340 has 48 divisors (see below), whose sum is σ = 4701312. Its totient is φ = 637056.

The previous prime is 1908323. The next prime is 1908343. The reversal of 1908340 is 438091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1908343) 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, 5862 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (97944).

2^1908340 is an apocalyptic number.

1908340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1908340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2350656).

1908340 is an abundant number, since it is smaller than the sum of its proper divisors (2792972).

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

1908340 is a wasteful number, since it uses less digits than its factorization.

1908340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1908340 is about 1381.4267986397. The cubic root of 1908340 is about 124.0371896775.

The spelling of 1908340 in words is "one million, nine hundred eight thousand, three hundred forty".