1381467880 has 128 divisors (see below), whose sum is σ = 3537515520. Its totient is φ = 481904640.

The previous prime is 1381467823. The next prime is 1381467947. The reversal of 1381467880 is 887641831.

It is a self number, because there is not a number n which added to its sum of digits gives 1381467880.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 692164 + ... + 694156.

It is an arithmetic number, because the mean of its divisors is an integer number (27636840).

Almost surely, 2^1381467880 is an apocalyptic number.

1381467880 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 1381467880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768757760).

1381467880 is an abundant number, since it is smaller than the sum of its proper divisors (2156047640).

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

1381467880 is a wasteful number, since it uses less digits than its factorization.

1381467880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2087 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 1381467880 is about 37168.1029916782. The cubic root of 1381467880 is about 1113.7308865849.

The spelling of 1381467880 in words is "one billion, three hundred eighty-one million, four hundred sixty-seven thousand, eight hundred eighty".