1378948355 has 8 divisors (see below), whose sum is σ = 1708116864. Its totient is φ = 1067572800.

The previous prime is 1378948349. The next prime is 1378948357. The reversal of 1378948355 is 5538498731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1378948355 - 2⁴ = 1378948339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1378948297 and 1378948306.

It is not an unprimeable number, because it can be changed into a prime (1378948357) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4448066 + ... + 4448375.

It is an arithmetic number, because the mean of its divisors is an integer number (213514608).

Almost surely, 2^1378948355 is an apocalyptic number.

1378948355 is a deficient number, since it is larger than the sum of its proper divisors (329168509).

1378948355 is an equidigital number, since it uses as much as digits as its factorization.

1378948355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8896477.

The product of its digits is 3628800, while the sum is 53.

The square root of 1378948355 is about 37134.1938784189. The cubic root of 1378948355 is about 1113.0533993770.

The spelling of 1378948355 in words is "one billion, three hundred seventy-eight million, nine hundred forty-eight thousand, three hundred fifty-five".