22277828 has 12 divisors (see below), whose sum is σ = 39351312. Its totient is φ = 11034600.

The previous prime is 22277791. The next prime is 22277831. The reversal of 22277828 is 82877222.

It is a junction number, because it is equal to n+sod(n) for n = 22277791 and 22277800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25598 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (3279276).

Almost surely, 2^22277828 is an apocalyptic number.

It is an amenable number.

22277828 is a deficient number, since it is larger than the sum of its proper divisors (17073484).

22277828 is a wasteful number, since it uses less digits than its factorization.

22277828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52162 (or 52160 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 22277828 is about 4719.9394063907. The cubic root of 22277828 is about 281.3785250933.

The spelling of 22277828 in words is "twenty-two million, two hundred seventy-seven thousand, eight hundred twenty-eight".