1648972 has 24 divisors (see below), whose sum is σ = 3273200. Its totient is φ = 720576.

The previous prime is 1648963. The next prime is 1648987. The reversal of 1648972 is 2798461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154 + ... + 1822.

2^1648972 is an apocalyptic number.

It is an amenable number.

1648972 is a deficient number, since it is larger than the sum of its proper divisors (1624228).

1648972 is a wasteful number, since it uses less digits than its factorization.

1648972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1703 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 1648972 is about 1284.1230470636. The cubic root of 1648972 is about 118.1420294962.

It can be divided in two parts, 16489 and 72, that added together give a palindrome (16561).

The spelling of 1648972 in words is "one million, six hundred forty-eight thousand, nine hundred seventy-two".