1339481880 has 256 divisors, whose sum is σ = 4912358400. Its totient is φ = 321960960.

The previous prime is 1339481851. The next prime is 1339481911. The reversal of 1339481880 is 881849331.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1627149 + ... + 1627971.

It is an arithmetic number, because the mean of its divisors is an integer number (19188900).

Almost surely, 2^1339481880 is an apocalyptic number.

1339481880 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 1339481880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2456179200).

1339481880 is an abundant number, since it is smaller than the sum of its proper divisors (3572876520).

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

1339481880 is a wasteful number, since it uses less digits than its factorization.

1339481880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1339481880 is about 36598.9327713255. The cubic root of 1339481880 is about 1102.3316601693.

The spelling of 1339481880 in words is "one billion, three hundred thirty-nine million, four hundred eighty-one thousand, eight hundred eighty".