2164943046 has 64 divisors (see below), whose sum is σ = 5149329408. Its totient is φ = 593943168.

The previous prime is 2164942961. The next prime is 2164943051. The reversal of 2164943046 is 6403494612.

It is a junction number, because it is equal to n+sod(n) for n = 2164942995 and 2164943013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94276 + ... + 114968.

It is an arithmetic number, because the mean of its divisors is an integer number (80458272).

Almost surely, 2^2164943046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164943046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2574664704).

2164943046 is an abundant number, since it is smaller than the sum of its proper divisors (2984386362).

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

2164943046 is a wasteful number, since it uses less digits than its factorization.

2164943046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20805.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 2164943046 is about 46528.9484729668. The cubic root of 2164943046 is about 1293.6461248067.

The spelling of 2164943046 in words is "two billion, one hundred sixty-four million, nine hundred forty-three thousand, forty-six".