4397707840 has 28 divisors (see below), whose sum is σ = 10472042556. Its totient is φ = 1759083008.

The previous prime is 4397707819. The next prime is 4397707841. The reversal of 4397707840 is 487077934.

It can be written as a sum of positive squares in 2 ways, for example, as 1200483904 + 3197223936 = 34648^2 + 56544^2 .

It is not an unprimeable number, because it can be changed into a prime (4397707841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6871099 + ... + 6871738.

Almost surely, 2^4397707840 is an apocalyptic number.

4397707840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4397707840 is an abundant number, since it is smaller than the sum of its proper divisors (6074334716).

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

4397707840 is a wasteful number, since it uses less digits than its factorization.

4397707840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13742854 (or 13742844 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 4397707840 is about 66315.2157502334. The cubic root of 4397707840 is about 1638.3579439812.

The spelling of 4397707840 in words is "four billion, three hundred ninety-seven million, seven hundred seven thousand, eight hundred forty".