1378675320 has 64 divisors (see below), whose sum is σ = 4512032640. Its totient is φ = 334224000.

The previous prime is 1378675279. The next prime is 1378675327. The reversal of 1378675320 is 235768731.

It is a super-3 number, since 3×1378675320³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378675327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520906 + ... + 523545.

It is an arithmetic number, because the mean of its divisors is an integer number (70500510).

Almost surely, 2^1378675320 is an apocalyptic number.

1378675320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378675320 is an abundant number, since it is smaller than the sum of its proper divisors (3133357320).

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

1378675320 is a wasteful number, since it uses less digits than its factorization.

1378675320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044476 (or 1044472 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 1378675320 is about 37130.5173677933. The cubic root of 1378675320 is about 1112.9799321357.

The spelling of 1378675320 in words is "one billion, three hundred seventy-eight million, six hundred seventy-five thousand, three hundred twenty".