3649907756 has 24 divisors (see below), whose sum is σ = 7056215040. Its totient is φ = 1638046800.

The previous prime is 3649907741. The next prime is 3649907761. The reversal of 3649907756 is 6577099463.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521540 + ... + 528491.

It is an arithmetic number, because the mean of its divisors is an integer number (294008960).

Almost surely, 2^3649907756 is an apocalyptic number.

It is an amenable number.

3649907756 is a deficient number, since it is larger than the sum of its proper divisors (3406307284).

3649907756 is a wasteful number, since it uses less digits than its factorization.

3649907756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050125 (or 1050123 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 56.

The square root of 3649907756 is about 60414.4664463736. The cubic root of 3649907756 is about 1539.6687537402.

The spelling of 3649907756 in words is "three billion, six hundred forty-nine million, nine hundred seven thousand, seven hundred fifty-six".