22403402 has 8 divisors (see below), whose sum is σ = 38405856. Its totient is φ = 9601452.

The previous prime is 22403401. The next prime is 22403419. The reversal of 22403402 is 20430422.

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

It is not an unprimeable number, because it can be changed into a prime (22403401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800108 + ... + 800135.

It is an arithmetic number, because the mean of its divisors is an integer number (4800732).

Almost surely, 2^22403402 is an apocalyptic number.

22403402 is a deficient number, since it is larger than the sum of its proper divisors (16002454).

22403402 is a wasteful number, since it uses less digits than its factorization.

22403402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600252.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22403402 is about 4733.2232146815. The cubic root of 22403402 is about 281.9062193401.

Adding to 22403402 its reverse (20430422), we get a palindrome (42833824).

The spelling of 22403402 in words is "twenty-two million, four hundred three thousand, four hundred two".