1908224 has 20 divisors (see below), whose sum is σ = 3813744. Its totient is φ = 953856.

The previous prime is 1908223. The next prime is 1908239. The reversal of 1908224 is 4228091.

It is a junction number, because it is equal to n+sod(n) for n = 1908193 and 1908202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1908223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352 + ... + 2375.

2^1908224 is an apocalyptic number.

It is an amenable number.

1908224 is a deficient number, since it is larger than the sum of its proper divisors (1905520).

1908224 is an frugal number, since it uses more digits than its factorization.

1908224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3745 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1908224 is about 1381.3848124256. The cubic root of 1908224 is about 124.0346763928.

The spelling of 1908224 in words is "one million, nine hundred eight thousand, two hundred twenty-four".