22405066 has 8 divisors (see below), whose sum is σ = 35376480. Its totient is φ = 10612908.

The previous prime is 22405063. The next prime is 22405067. The reversal of 22405066 is 66050422.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22405066.

It is not an unprimeable number, because it can be changed into a prime (22405063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294766 + ... + 294841.

It is an arithmetic number, because the mean of its divisors is an integer number (4422060).

Almost surely, 2^22405066 is an apocalyptic number.

22405066 is a deficient number, since it is larger than the sum of its proper divisors (12971414).

22405066 is a wasteful number, since it uses less digits than its factorization.

22405066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589628.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 22405066 is about 4733.3989901550. The cubic root of 22405066 is about 281.9131986423.

Adding to 22405066 its reverse (66050422), we get a palindrome (88455488).

The spelling of 22405066 in words is "twenty-two million, four hundred five thousand, sixty-six".