1391100480 has 1120 divisors, whose sum is σ = 6691652352. Its totient is φ = 265420800.

The previous prime is 1391100437. The next prime is 1391100509. The reversal of 1391100480 is 840011931.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 33929260 + ... + 33929300.

Almost surely, 2^1391100480 is an apocalyptic number.

1391100480 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 1391100480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3345826176).

1391100480 is an abundant number, since it is smaller than the sum of its proper divisors (5300551872).

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

1391100480 is a wasteful number, since it uses less digits than its factorization.

1391100480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1391100480 is about 37297.4594309049. The cubic root of 1391100480 is about 1116.3134742013.

The spelling of 1391100480 in words is "one billion, three hundred ninety-one million, one hundred thousand, four hundred eighty".