2071307844 has 18 divisors (see below), whose sum is σ = 5235806030. Its totient is φ = 690435936.

The previous prime is 2071307837. The next prime is 2071307851. The reversal of 2071307844 is 4487031702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2071307837) and next prime (2071307851).

It can be written as a sum of positive squares in only one way, i.e., 1995408900 + 75898944 = 44670^2 + 8712^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 57536329 = 2071307844 / (2 + 0 + 7 + 1 + 3 + 0 + 7 + 8 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 2071307799 and 2071307808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28768129 + ... + 28768200.

Almost surely, 2^2071307844 is an apocalyptic number.

It is an amenable number.

2071307844 is an abundant number, since it is smaller than the sum of its proper divisors (3164498186).

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

2071307844 is a wasteful number, since it uses less digits than its factorization.

2071307844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57536339 (or 57536334 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 2071307844 is about 45511.6231747452. The cubic root of 2071307844 is about 1274.7202449656.

The spelling of 2071307844 in words is "two billion, seventy-one million, three hundred seven thousand, eight hundred forty-four".