3649420288 has 44 divisors (see below), whose sum is σ = 7679279560. Its totient is φ = 1728663552.

The previous prime is 3649420261. The next prime is 3649420289. The reversal of 3649420288 is 8820249463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649420289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74331 + ... + 113242.

Almost surely, 2^3649420288 is an apocalyptic number.

3649420288 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3649420288 is an abundant number, since it is smaller than the sum of its proper divisors (4029859272).

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

3649420288 is a wasteful number, since it uses less digits than its factorization.

3649420288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187612 (or 187594 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 3649420288 is about 60410.4319468087. The cubic root of 3649420288 is about 1539.6002065592.

The spelling of 3649420288 in words is "three billion, six hundred forty-nine million, four hundred twenty thousand, two hundred eighty-eight".