3665249444 has 6 divisors (see below), whose sum is σ = 6414186534. Its totient is φ = 1832624720.

The previous prime is 3665249431. The next prime is 3665249501. The reversal of 3665249444 is 4449425663.

3665249444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3586572544 + 78676900 = 59888^2 + 8870^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458156177 + ... + 458156184.

It is an arithmetic number, because the mean of its divisors is an integer number (1069031089).

Almost surely, 2^3665249444 is an apocalyptic number.

It is an amenable number.

3665249444 is a deficient number, since it is larger than the sum of its proper divisors (2748937090).

3665249444 is a wasteful number, since it uses less digits than its factorization.

3665249444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916312365 (or 916312363 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 47.

The square root of 3665249444 is about 60541.3036199255. The cubic root of 3665249444 is about 1541.8229724835.

The spelling of 3665249444 in words is "three billion, six hundred sixty-five million, two hundred forty-nine thousand, four hundred forty-four".