3654441999 has 24 divisors (see below), whose sum is σ = 5713579872. Its totient is φ = 2237457600.

The previous prime is 3654441979. The next prime is 3654442003. The reversal of 3654441999 is 9991444563.

It is a happy number.

3654441999 is a `hidden beast` number, since 3 + 6 + 5 + 444 + 199 + 9 = 666.

It is not a de Polignac number, because 3654441999 - 2¹³ = 3654433807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654441919) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 56227 + ... + 102324.

It is an arithmetic number, because the mean of its divisors is an integer number (238065828).

Almost surely, 2^3654441999 is an apocalyptic number.

3654441999 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3654441999 is a deficient number, since it is larger than the sum of its proper divisors (2059137873).

3654441999 is a wasteful number, since it uses less digits than its factorization.

3654441999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158767 (or 158764 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 3654441999 is about 60451.9809352845. The cubic root of 3654441999 is about 1540.3060614774.

The spelling of 3654441999 in words is "three billion, six hundred fifty-four million, four hundred forty-one thousand, nine hundred ninety-nine".