2140641306 has 24 divisors (see below), whose sum is σ = 4667604084. Its totient is φ = 709001280.

The previous prime is 2140641247. The next prime is 2140641317. The reversal of 2140641306 is 6031460412.

2140641306 is a `hidden beast` number, since 2 + 14 + 0 + 641 + 3 + 0 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2107636281 + 33005025 = 45909^2 + 5745^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2140641306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375915 + ... + 381566.

Almost surely, 2^2140641306 is an apocalyptic number.

2140641306 is an abundant number, since it is smaller than the sum of its proper divisors (2526962778).

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

2140641306 is a wasteful number, since it uses less digits than its factorization.

2140641306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757646 (or 757643 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2140641306 is about 46267.0650247020. The cubic root of 2140641306 is about 1288.7874562561.

The spelling of 2140641306 in words is "two billion, one hundred forty million, six hundred forty-one thousand, three hundred six".