22040384 has 28 divisors (see below), whose sum is σ = 43886628. Its totient is φ = 10982400.

The previous prime is 22040363. The next prime is 22040393. The reversal of 22040384 is 48304022.

It can be written as a sum of positive squares in 2 ways, for example, as 12054784 + 9985600 = 3472^2 + 3160^2 .

It is a super-3 number, since 3×22040384³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (23) 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 3 ways as a sum of consecutive naturals, for example, 33014 + ... + 33674.

Almost surely, 2^22040384 is an apocalyptic number.

It is an amenable number.

22040384 is a deficient number, since it is larger than the sum of its proper divisors (21846244).

22040384 is an equidigital number, since it uses as much as digits as its factorization.

22040384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 22040384 is about 4694.7187349191. The cubic root of 22040384 is about 280.3752791082.

It can be divided in two parts, 220 and 40384, that added together give a palindrome (40604).

The spelling of 22040384 in words is "twenty-two million, forty thousand, three hundred eighty-four".