2164274730 has 48 divisors (see below), whose sum is σ = 5632927560. Its totient is φ = 576543744.

The previous prime is 2164274729. The next prime is 2164274731. The reversal of 2164274730 is 374724612.

2164274730 is a `hidden beast` number, since 2 + 1 + 642 + 7 + 4 + 7 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2164274729) and next prime (2164274731).

It can be written as a sum of positive squares in 4 ways, for example, as 1915550289 + 248724441 = 43767^2 + 15771^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2164274731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78894 + ... + 102726.

Almost surely, 2^2164274730 is an apocalyptic number.

2164274730 is an abundant number, since it is smaller than the sum of its proper divisors (3468652830).

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

2164274730 is a wasteful number, since it uses less digits than its factorization.

2164274730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24855 (or 24852 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 2164274730 is about 46521.7661960506. The cubic root of 2164274730 is about 1293.5129953026.

The spelling of 2164274730 in words is "two billion, one hundred sixty-four million, two hundred seventy-four thousand, seven hundred thirty".