2206421506 has 8 divisors (see below), whose sum is σ = 3319632144. Its totient is φ = 1099877460.

The previous prime is 2206421501. The next prime is 2206421521. The reversal of 2206421506 is 6051246022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2206421501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665820 + ... + 1667143.

It is an arithmetic number, because the mean of its divisors is an integer number (414954018).

Almost surely, 2^2206421506 is an apocalyptic number.

2206421506 is a deficient number, since it is larger than the sum of its proper divisors (1113210638).

2206421506 is a wasteful number, since it uses less digits than its factorization.

2206421506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333296.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2206421506 is about 46972.5612033238. The cubic root of 2206421506 is about 1301.8556351915.

Adding to 2206421506 its reverse (6051246022), we get a palindrome (8257667528).

The spelling of 2206421506 in words is "two billion, two hundred six million, four hundred twenty-one thousand, five hundred six".