3649999800 has 48 divisors (see below), whose sum is σ = 11315001240. Its totient is φ = 973333120.

The previous prime is 3649999757. The next prime is 3649999817. The reversal of 3649999800 is 89999463.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3041067 + ... + 3042266.

Almost surely, 2^3649999800 is an apocalyptic number.

3649999800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3649999800 is an abundant number, since it is smaller than the sum of its proper divisors (7665001440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3649999800 is a wasteful number, since it uses less digits than its factorization.

3649999800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083352 (or 6083343 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 57.

The square root of 3649999800 is about 60415.2282127611. The cubic root of 3649999800 is about 1539.6816961750.

The spelling of 3649999800 in words is "three billion, six hundred forty-nine million, nine hundred ninety-nine thousand, eight hundred".