2211620406 has 64 divisors (see below), whose sum is σ = 4974048000. Its totient is φ = 651442176.

The previous prime is 2211620371. The next prime is 2211620413. The reversal of 2211620406 is 6040261122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213945 + ... + 224043.

It is an arithmetic number, because the mean of its divisors is an integer number (77719500).

Almost surely, 2^2211620406 is an apocalyptic number.

2211620406 is an abundant number, since it is smaller than the sum of its proper divisors (2762427594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211620406 is a wasteful number, since it uses less digits than its factorization.

2211620406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2211620406 is about 47027.8683973663. The cubic root of 2211620406 is about 1302.8773360618.

Adding to 2211620406 its reverse (6040261122), we get a palindrome (8251881528).

The spelling of 2211620406 in words is "two billion, two hundred eleven million, six hundred twenty thousand, four hundred six".