10821844 has 24 divisors (see below), whose sum is σ = 21103488. Its totient is φ = 4813440.

The previous prime is 10821829. The next prime is 10821851. The reversal of 10821844 is 44812801.

10821844 = T₁₄₄ + T₁₄₅ + ... + T₄₀₇.

It is a super-2 number, since 2×10821844² = 234224615120672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 549 + ... + 4684.

It is an arithmetic number, because the mean of its divisors is an integer number (879312).

Almost surely, 2^10821844 is an apocalyptic number.

It is an amenable number.

10821844 is a deficient number, since it is larger than the sum of its proper divisors (10281644).

10821844 is a wasteful number, since it uses less digits than its factorization.

10821844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295 (or 5293 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 10821844 is about 3289.6571249904. The cubic root of 10821844 is about 221.1908154547.

It can be divided in two parts, 1082 and 1844, that added together give a triangular number (2926 = T₇₆).

The spelling of 10821844 in words is "ten million, eight hundred twenty-one thousand, eight hundred forty-four".