2162808036 has 81 divisors (see below), whose sum is σ = 5732141961. Its totient is φ = 687544704.

The previous prime is 2162808029. The next prime is 2162808073. The reversal of 2162808036 is 6308082612.

The square root of 2162808036 is 46506.

It is a perfect power (a square), and thus also a powerful number.

2162808036 is a `hidden beast` number, since 21 + 628 + 0 + 8 + 0 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 583222500 + 1579585536 = 24150^2 + 39744^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6417660 + ... + 6417996.

Almost surely, 2^2162808036 is an apocalyptic number.

2162808036 is the 46506-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2162808036

2162808036 is an abundant number, since it is smaller than the sum of its proper divisors (3569333925).

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

2162808036 is a wasteful number, since it uses less digits than its factorization.

2162808036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The cubic root of 2162808036 is about 1293.2207316560.

Multiplying 2162808036 by its sum of digits (36), we get a square (77861089296 = 279036²).

2162808036 divided by its sum of digits (36) gives a square (60078001 = 7751²).

The spelling of 2162808036 in words is "two billion, one hundred sixty-two million, eight hundred eight thousand, thirty-six".