22351316 has 24 divisors (see below), whose sum is σ = 42330120. Its totient is φ = 10265472.

The previous prime is 22351313. The next prime is 22351321. The reversal of 22351316 is 61315322.

It can be written as a sum of positive squares in 4 ways, for example, as 5541316 + 16810000 = 2354^2 + 4100^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22351291 and 22351300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22351313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10970 + ... + 12846.

It is an arithmetic number, because the mean of its divisors is an integer number (1763755).

Almost surely, 2^22351316 is an apocalyptic number.

22351316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22351316 is a deficient number, since it is larger than the sum of its proper divisors (19978804).

22351316 is a wasteful number, since it uses less digits than its factorization.

22351316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123 (or 2121 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 22351316 is about 4727.7178426805. The cubic root of 22351316 is about 281.6875805034.

Adding to 22351316 its reverse (61315322), we get a palindrome (83666638).

The spelling of 22351316 in words is "twenty-two million, three hundred fifty-one thousand, three hundred sixteen".