22780270 has 8 divisors (see below), whose sum is σ = 41004504. Its totient is φ = 9112104.

The previous prime is 22780249. The next prime is 22780273. The reversal of 22780270 is 7208722.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780273) 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, 1139004 + ... + 1139023.

It is an arithmetic number, because the mean of its divisors is an integer number (5125563).

Almost surely, 2^22780270 is an apocalyptic number.

22780270 is a deficient number, since it is larger than the sum of its proper divisors (18224234).

22780270 is a wasteful number, since it uses less digits than its factorization.

22780270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278034.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 22780270 is about 4772.8681104761. The cubic root of 22780270 is about 283.4781712376.

Adding to 22780270 its reverse (7208722), we get a palindrome (29988992).

The spelling of 22780270 in words is "twenty-two million, seven hundred eighty thousand, two hundred seventy".