2161040262 has 8 divisors (see below), whose sum is σ = 4322080536. Its totient is φ = 720346752.

The previous prime is 2161040261. The next prime is 2161040263. The reversal of 2161040262 is 2620401612.

It is an interprime number because it is at equal distance from previous prime (2161040261) and next prime (2161040263).

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

2161040262 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161040261) 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, 180086683 + ... + 180086694.

It is an arithmetic number, because the mean of its divisors is an integer number (540260067).

Almost surely, 2^2161040262 is an apocalyptic number.

2161040262 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2161040262 is a wasteful number, since it uses less digits than its factorization.

2161040262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360173382.

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

The square root of 2161040262 is about 46486.9902445835. The cubic root of 2161040262 is about 1292.8682970608.

Adding to 2161040262 its reverse (2620401612), we get a palindrome (4781441874).

The spelling of 2161040262 in words is "two billion, one hundred sixty-one million, forty thousand, two hundred sixty-two".