3649128284 has 12 divisors (see below), whose sum is σ = 6400725744. Its totient is φ = 1820349504.

The previous prime is 3649128247. The next prime is 3649128311. The reversal of 3649128284 is 4828219463.

It is a super-2 number, since 2×3649128284² = 26632274466177569312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051712 + ... + 1055175.

It is an arithmetic number, because the mean of its divisors is an integer number (533393812).

Almost surely, 2^3649128284 is an apocalyptic number.

It is an amenable number.

3649128284 is a deficient number, since it is larger than the sum of its proper divisors (2751597460).

3649128284 is a wasteful number, since it uses less digits than its factorization.

3649128284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107324 (or 2107322 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 3649128284 is about 60408.0150642280. The cubic root of 3649128284 is about 1539.5591423741.

The spelling of 3649128284 in words is "three billion, six hundred forty-nine million, one hundred twenty-eight thousand, two hundred eighty-four".