18822434 has 8 divisors (see below), whose sum is σ = 29894508. Its totient is φ = 8857600.

The previous prime is 18822431. The next prime is 18822437. The reversal of 18822434 is 43422881.

It is an interprime number because it is at equal distance from previous prime (18822431) and next prime (18822437).

It can be written as a sum of positive squares in 2 ways, for example, as 18105025 + 717409 = 4255^2 + 847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18822434.

It is not an unprimeable number, because it can be changed into a prime (18822431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276767 + ... + 276834.

Almost surely, 2^18822434 is an apocalyptic number.

18822434 is a deficient number, since it is larger than the sum of its proper divisors (11072074).

18822434 is a wasteful number, since it uses less digits than its factorization.

18822434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553620.

The product of its digits is 12288, while the sum is 32.

The square root of 18822434 is about 4338.4829145682. The cubic root of 18822434 is about 266.0063032030.

It can be divided in two parts, 188 and 22434, that added together give a palindrome (22622).

The spelling of 18822434 in words is "eighteen million, eight hundred twenty-two thousand, four hundred thirty-four".