22820870 has 16 divisors (see below), whose sum is σ = 41691888. Its totient is φ = 8991840.

The previous prime is 22820857. The next prime is 22820873. The reversal of 22820870 is 7802822.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820873) 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, 16361 + ... + 17700.

It is an arithmetic number, because the mean of its divisors is an integer number (2605743).

Almost surely, 2^22820870 is an apocalyptic number.

22820870 is a deficient number, since it is larger than the sum of its proper divisors (18871018).

22820870 is a wasteful number, since it uses less digits than its factorization.

22820870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34135.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 22820870 is about 4777.1194249254. The cubic root of 22820870 is about 283.6464803797.

The spelling of 22820870 in words is "twenty-two million, eight hundred twenty thousand, eight hundred seventy".