1381793960 has 64 divisors (see below), whose sum is σ = 3198545280. Its totient is φ = 537027840.

The previous prime is 1381793947. The next prime is 1381793993. The reversal of 1381793960 is 693971831.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 199109 + ... + 205931.

It is an arithmetic number, because the mean of its divisors is an integer number (49977270).

Almost surely, 2^1381793960 is an apocalyptic number.

1381793960 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 1381793960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1599272640).

1381793960 is an abundant number, since it is smaller than the sum of its proper divisors (1816751320).

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

1381793960 is a wasteful number, since it uses less digits than its factorization.

1381793960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978 (or 6974 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 1381793960 is about 37172.4892897960. The cubic root of 1381793960 is about 1113.8185075864.

The spelling of 1381793960 in words is "one billion, three hundred eighty-one million, seven hundred ninety-three thousand, nine hundred sixty".