1641772 has 12 divisors (see below), whose sum is σ = 3134376. Its totient is φ = 746240.

The previous prime is 1641751. The next prime is 1641797. The reversal of 1641772 is 2771461.

It is a self number, because there is not a number n which added to its sum of digits gives 1641772.

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, 18613 + ... + 18700.

It is an arithmetic number, because the mean of its divisors is an integer number (261198).

2^1641772 is an apocalyptic number.

It is an amenable number.

1641772 is a deficient number, since it is larger than the sum of its proper divisors (1492604).

1641772 is a wasteful number, since it uses less digits than its factorization.

1641772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37328 (or 37326 counting only the distinct ones).

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

The square root of 1641772 is about 1281.3165104688. The cubic root of 1641772 is about 117.9698285401.

It can be divided in two parts, 164 and 1772, that added together give a square (1936 = 44²).

The spelling of 1641772 in words is "one million, six hundred forty-one thousand, seven hundred seventy-two".