22820650 has 24 divisors (see below), whose sum is σ = 43818624. Its totient is φ = 8833200.

The previous prime is 22820599. The next prime is 22820657. The reversal of 22820650 is 5602822.

22820650 = 366² + 367² + ... + 489².

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22820657) 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, 5812 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (1825776).

Almost surely, 2^22820650 is an apocalyptic number.

22820650 is a deficient number, since it is larger than the sum of its proper divisors (20997974).

22820650 is a wasteful number, since it uses less digits than its factorization.

22820650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14766 (or 14761 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 22820650 is about 4777.0963984412. The cubic root of 22820650 is about 283.6455688979.

The spelling of 22820650 in words is "twenty-two million, eight hundred twenty thousand, six hundred fifty".