4388649120 has 96 divisors (see below), whose sum is σ = 15360287040. Its totient is φ = 1170305280.

The previous prime is 4388649107. The next prime is 4388649121. The reversal of 4388649120 is 219468834.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4388649121) 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 15 ways as a sum of consecutive naturals, for example, 503626 + ... + 512265.

It is an arithmetic number, because the mean of its divisors is an integer number (160002990).

Almost surely, 2^4388649120 is an apocalyptic number.

4388649120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4388649120 is an abundant number, since it is smaller than the sum of its proper divisors (10971637920).

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

4388649120 is a wasteful number, since it uses less digits than its factorization.

4388649120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015915 (or 1015901 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 4388649120 is about 66246.8800774799. The cubic root of 4388649120 is about 1637.2322342117.

The spelling of 4388649120 in words is "four billion, three hundred eighty-eight million, six hundred forty-nine thousand, one hundred twenty".