4449601488 has 160 divisors (see below), whose sum is σ = 12933993600. Its totient is φ = 1309851648.

The previous prime is 4449601483. The next prime is 4449601493. The reversal of 4449601488 is 8841069444.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4449601483) and next prime (4449601493).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449601483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1688620 + ... + 1691252.

It is an arithmetic number, because the mean of its divisors is an integer number (80837460).

Almost surely, 2^4449601488 is an apocalyptic number.

4449601488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4449601488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6466996800).

4449601488 is an abundant number, since it is smaller than the sum of its proper divisors (8484392112).

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

4449601488 is a wasteful number, since it uses less digits than its factorization.

4449601488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 4449601488 is about 66705.3332800309. Note that the first 3 decimals coincide. The cubic root of 4449601488 is about 1644.7770552403. Note that the first 3 decimals are identical.

The spelling of 4449601488 in words is "four billion, four hundred forty-nine million, six hundred one thousand, four hundred eighty-eight".