22315450 has 12 divisors (see below), whose sum is σ = 41506830. Its totient is φ = 8926160.

The previous prime is 22315429. The next prime is 22315453. The reversal of 22315450 is 5451322.

It can be written as a sum of positive squares in 3 ways, for example, as 13771521 + 8543929 = 3711^2 + 2923^2 .

It is a super-3 number, since 3×22315450³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22315453) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 223105 + ... + 223204.

Almost surely, 2^22315450 is an apocalyptic number.

22315450 is a deficient number, since it is larger than the sum of its proper divisors (19191380).

22315450 is a wasteful number, since it uses less digits than its factorization.

22315450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446321 (or 446316 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22315450 is about 4723.9231577154. The cubic root of 22315450 is about 281.5368300136.

Adding to 22315450 its reverse (5451322), we get a palindrome (27766772).

The spelling of 22315450 in words is "twenty-two million, three hundred fifteen thousand, four hundred fifty".