1361824 has 12 divisors (see below), whose sum is σ = 2681154. Its totient is φ = 680896.

The previous prime is 1361813. The next prime is 1361827. The reversal of 1361824 is 4281631.

It can be written as a sum of positive squares in only one way, i.e., 753424 + 608400 = 868^2 + 780^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1361827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21247 + ... + 21310.

2^1361824 is an apocalyptic number.

It is an amenable number.

1361824 is a deficient number, since it is larger than the sum of its proper divisors (1319330).

1361824 is an equidigital number, since it uses as much as digits as its factorization.

1361824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42567 (or 42559 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 1361824 is about 1166.9721504817. The cubic root of 1361824 is about 110.8426740703.

The spelling of 1361824 in words is "one million, three hundred sixty-one thousand, eight hundred twenty-four".