22000030 has 32 divisors (see below), whose sum is σ = 42890400. Its totient is φ = 8076672.

The previous prime is 22000021. The next prime is 22000031. The reversal of 22000030 is 3000022.

It is a junction number, because it is equal to n+sod(n) for n = 21999977 and 22000022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000031) 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, 29401 + ... + 30139.

It is an arithmetic number, because the mean of its divisors is an integer number (1340325).

Almost surely, 2^22000030 is an apocalyptic number.

22000030 is a deficient number, since it is larger than the sum of its proper divisors (20890370).

22000030 is a wasteful number, since it uses less digits than its factorization.

22000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 22000030 is about 4690.4189578331. The cubic root of 22000030 is about 280.2040604309.

Adding to 22000030 its reverse (3000022), we get a palindrome (25000052).

The spelling of 22000030 in words is "twenty-two million, thirty", and thus it is an aban number and an uban number.