3995124849 has 21 divisors (see below), whose sum is σ = 5992506939. Its totient is φ = 2662278840.

The previous prime is 3995124803. The next prime is 3995124857. The reversal of 3995124849 is 9484215993.

The square root of 3995124849 is 63207.

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

3995124849 is a `hidden beast` number, since 399 + 5 + 1 + 248 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2606817249 + 1388307600 = 51057^2 + 37260^2 .

It is not a de Polignac number, because 3995124849 - 2¹⁵ = 3995092081 is a prime.

It is a super-2 number, since 2×3995124849² = 31922045118194545602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3995124795 and 3995124804.

It is not an unprimeable number, because it can be changed into a prime (3995124869) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1705419 + ... + 1707759.

Almost surely, 2^3995124849 is an apocalyptic number.

3995124849 is the 63207-th square number.

3995124849 is the 31604-th centered octagonal number.

It is an amenable number.

3995124849 is a deficient number, since it is larger than the sum of its proper divisors (1997382090).

3995124849 is an frugal number, since it uses more digits than its factorization.

3995124849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700 (or 2344 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The cubic root of 3995124849 is about 1586.7558881391.

The spelling of 3995124849 in words is "three billion, nine hundred ninety-five million, one hundred twenty-four thousand, eight hundred forty-nine".