1378169260 has 48 divisors (see below), whose sum is σ = 3300133536. Its totient is φ = 478927872.

The previous prime is 1378169257. The next prime is 1378169323. The reversal of 1378169260 is 629618731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151482 + ... + 160321.

It is an arithmetic number, because the mean of its divisors is an integer number (68752782).

Almost surely, 2^1378169260 is an apocalyptic number.

1378169260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378169260 is an abundant number, since it is smaller than the sum of its proper divisors (1921964276).

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

1378169260 is a wasteful number, since it uses less digits than its factorization.

1378169260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311842 (or 311840 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1378169260 is about 37123.7021321958. The cubic root of 1378169260 is about 1112.8437377408.

The spelling of 1378169260 in words is "one billion, three hundred seventy-eight million, one hundred sixty-nine thousand, two hundred sixty".