22405050 has 36 divisors (see below), whose sum is σ = 60196110. Its totient is φ = 5974560.

The previous prime is 22405049. The next prime is 22405063. The reversal of 22405050 is 5050422.

It can be written as a sum of positive squares in 3 ways, for example, as 13242321 + 9162729 = 3639^2 + 3027^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24445 + ... + 25344.

Almost surely, 2^22405050 is an apocalyptic number.

22405050 is an abundant number, since it is smaller than the sum of its proper divisors (37791060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22405050 is a wasteful number, since it uses less digits than its factorization.

22405050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49807 (or 49799 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 22405050 is about 4733.3973000373. The cubic root of 22405050 is about 281.9131315353.

Adding to 22405050 its reverse (5050422), we get a palindrome (27455472).

The spelling of 22405050 in words is "twenty-two million, four hundred five thousand, fifty".