22153706 has 8 divisors (see below), whose sum is σ = 33330180. Its totient is φ = 11043648.

The previous prime is 22153699. The next prime is 22153711. The reversal of 22153706 is 60735122.

It can be written as a sum of positive squares in 2 ways, for example, as 22005481 + 148225 = 4691^2 + 385^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15761 + ... + 17108.

Almost surely, 2^22153706 is an apocalyptic number.

22153706 is a deficient number, since it is larger than the sum of its proper divisors (11176474).

22153706 is a wasteful number, since it uses less digits than its factorization.

22153706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33208.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 22153706 is about 4706.7723548096. The cubic root of 22153706 is about 280.8549801975.

Adding to 22153706 its reverse (60735122), we get a palindrome (82888828).

The spelling of 22153706 in words is "twenty-two million, one hundred fifty-three thousand, seven hundred six".