1803772 has 6 divisors (see below), whose sum is σ = 3156608. Its totient is φ = 901884.

The previous prime is 1803761. The next prime is 1803799. The reversal of 1803772 is 2773081.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1803772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225468 + ... + 225475.

2^1803772 is an apocalyptic number.

It is an amenable number.

1803772 is a deficient number, since it is larger than the sum of its proper divisors (1352836).

1803772 is a wasteful number, since it uses less digits than its factorization.

1803772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450947 (or 450945 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1803772 is about 1343.0457922201. The cubic root of 1803772 is about 121.7289512415.

The spelling of 1803772 in words is "one million, eight hundred three thousand, seven hundred seventy-two".