22770284 has 24 divisors (see below), whose sum is σ = 42744240. Its totient is φ = 10580544.

The previous prime is 22770269. The next prime is 22770287. The reversal of 22770284 is 48207722.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22770284.

It is not an unprimeable number, because it can be changed into a prime (22770287) 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, 1202 + ... + 6854.

It is an arithmetic number, because the mean of its divisors is an integer number (1781010).

Almost surely, 2^22770284 is an apocalyptic number.

It is an amenable number.

22770284 is a deficient number, since it is larger than the sum of its proper divisors (19973956).

22770284 is a wasteful number, since it uses less digits than its factorization.

22770284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5729 (or 5727 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 22770284 is about 4771.8218742950. The cubic root of 22770284 is about 283.4367431837.

The spelling of 22770284 in words is "twenty-two million, seven hundred seventy thousand, two hundred eighty-four".