22820770 has 24 divisors (see below), whose sum is σ = 47784924. Its totient is φ = 7824096.

The previous prime is 22820753. The next prime is 22820779. The reversal of 22820770 is 7702822.

It can be written as a sum of positive squares in 2 ways, for example, as 18896409 + 3924361 = 4347^2 + 1981^2 .

It is not an unprimeable number, because it can be changed into a prime (22820779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22797 + ... + 23776.

Almost surely, 2^22820770 is an apocalyptic number.

22820770 is an abundant number, since it is smaller than the sum of its proper divisors (24964154).

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

22820770 is a wasteful number, since it uses less digits than its factorization.

22820770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46594 (or 46587 counting only the distinct ones).

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

The square root of 22820770 is about 4777.1089583555. The cubic root of 22820770 is about 283.6460660705.

The spelling of 22820770 in words is "twenty-two million, eight hundred twenty thousand, seven hundred seventy".