2164056492 has 54 divisors (see below), whose sum is σ = 5473062252. Its totient is φ = 665218944.

The previous prime is 2164056487. The next prime is 2164056511. The reversal of 2164056492 is 2946504612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 2164056492.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2094408 + ... + 2095440.

Almost surely, 2^2164056492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164056492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736531126).

2164056492 is an abundant number, since it is smaller than the sum of its proper divisors (3309005760).

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

2164056492 is a wasteful number, since it uses less digits than its factorization.

2164056492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2164056492 is about 46519.4205896849. The cubic root of 2164056492 is about 1293.4695160446.

The spelling of 2164056492 in words is "two billion, one hundred sixty-four million, fifty-six thousand, four hundred ninety-two".