1378842480 has 160 divisors (see below), whose sum is σ = 4807192320. Its totient is φ = 363214080.

The previous prime is 1378842473. The next prime is 1378842503. The reversal of 1378842480 is 842488731.

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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175435 + ... + 183125.

It is an arithmetic number, because the mean of its divisors is an integer number (30044952).

Almost surely, 2^1378842480 is an apocalyptic number.

1378842480 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 1378842480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403596160).

1378842480 is an abundant number, since it is smaller than the sum of its proper divisors (3428349840).

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

1378842480 is a wasteful number, since it uses less digits than its factorization.

1378842480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7796 (or 7784 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 1378842480 is about 37132.7682781664. The cubic root of 1378842480 is about 1113.0249120774.

The spelling of 1378842480 in words is "one billion, three hundred seventy-eight million, eight hundred forty-two thousand, four hundred eighty".