3944719249 has 9 divisors (see below), whose sum is σ = 3978097851. Its totient is φ = 3911619960.

The previous prime is 3944719231. The next prime is 3944719267. The reversal of 3944719249 is 9429174493.

The square root of 3944719249 is 62807.

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

It is an interprime number because it is at equal distance from previous prime (3944719231) and next prime (3944719267).

It can be written as a sum of positive squares in only one way, i.e., 43467649 + 3901251600 = 6593^2 + 62460^2 .

It is not a de Polignac number, because 3944719249 - 2⁹ = 3944718737 is a prime.

It is a super-2 number, since 2×3944719249² = 31121619906862248002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3944719196 and 3944719205.

It is not an unprimeable number, because it can be changed into a prime (3944719349) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11367894 + ... + 11368240.

Almost surely, 2^3944719249 is an apocalyptic number.

3944719249 is the 62807-th square number.

3944719249 is the 31404-th centered octagonal number.

It is an amenable number.

3944719249 is a deficient number, since it is larger than the sum of its proper divisors (33378602).

3944719249 is an frugal number, since it uses more digits than its factorization.

3944719249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 528 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The cubic root of 3944719249 is about 1580.0543762998.

The spelling of 3944719249 in words is "three billion, nine hundred forty-four million, seven hundred nineteen thousand, two hundred forty-nine".