1488339840 has 128 divisors (see below), whose sum is σ = 5109098400. Its totient is φ = 366354432.

The previous prime is 1488339781. The next prime is 1488339869. The reversal of 1488339840 is 489338841.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1488339840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4855 + ... + 54774.

Almost surely, 2^1488339840 is an apocalyptic number.

1488339840 is a gapful number since it is divisible by the number (10) 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 1488339840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2554549200).

1488339840 is an abundant number, since it is smaller than the sum of its proper divisors (3620758560).

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

1488339840 is a wasteful number, since it uses less digits than its factorization.

1488339840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59664 (or 59652 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1488339840 is about 38579.0077632901. The cubic root of 1488339840 is about 1141.7404010369.

Subtracting from 1488339840 its reverse (489338841), we obtain a palindrome (999000999).

The spelling of 1488339840 in words is "one billion, four hundred eighty-eight million, three hundred thirty-nine thousand, eight hundred forty".