22420365 has 32 divisors (see below), whose sum is σ = 41440896. Its totient is φ = 10229760.

The previous prime is 22420357. The next prime is 22420369. The reversal of 22420365 is 56302422.

It is not a de Polignac number, because 22420365 - 2³ = 22420357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420369) 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 31 ways as a sum of consecutive naturals, for example, 1192 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (1295028).

Almost surely, 2^22420365 is an apocalyptic number.

It is an amenable number.

22420365 is a deficient number, since it is larger than the sum of its proper divisors (19020531).

22420365 is a wasteful number, since it uses less digits than its factorization.

22420365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8029.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22420365 is about 4735.0147835038. The cubic root of 22420365 is about 281.9773509298.

Adding to 22420365 its reverse (56302422), we get a palindrome (78722787).

The spelling of 22420365 in words is "twenty-two million, four hundred twenty thousand, three hundred sixty-five".