22820830 has 32 divisors (see below), whose sum is σ = 43136064. Its totient is φ = 8676096.

The previous prime is 22820827. The next prime is 22820839. The reversal of 22820830 is 3802822.

It is a junction number, because it is equal to n+sod(n) for n = 22820795 and 22820804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71832 + ... + 72148.

It is an arithmetic number, because the mean of its divisors is an integer number (1348002).

Almost surely, 2^22820830 is an apocalyptic number.

22820830 is a deficient number, since it is larger than the sum of its proper divisors (20315234).

22820830 is a wasteful number, since it uses less digits than its factorization.

22820830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 22820830 is about 4777.1152383002. The cubic root of 22820830 is about 283.6463146562.

The spelling of 22820830 in words is "twenty-two million, eight hundred twenty thousand, eight hundred thirty".