1961824 has 24 divisors (see below), whose sum is σ = 3907008. Its totient is φ = 969600.

The previous prime is 1961819. The next prime is 1961833. The reversal of 1961824 is 4281691.

It is a happy number.

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 in 3 ways as a sum of consecutive naturals, for example, 2929 + ... + 3535.

It is an arithmetic number, because the mean of its divisors is an integer number (162792).

2^1961824 is an apocalyptic number.

It is an amenable number.

1961824 is a deficient number, since it is larger than the sum of its proper divisors (1945184).

1961824 is a wasteful number, since it uses less digits than its factorization.

1961824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 710 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 1961824 is about 1400.6512770851. The cubic root of 1961824 is about 125.1853038308.

The spelling of 1961824 in words is "one million, nine hundred sixty-one thousand, eight hundred twenty-four".