1378873227 has 8 divisors (see below), whose sum is σ = 1842184000. Its totient is φ = 917405640.

The previous prime is 1378873193. The next prime is 1378873231. The reversal of 1378873227 is 7223788731.

It is a happy number.

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

It is not a de Polignac number, because 1378873227 - 2¹⁰ = 1378872203 is a prime.

It is a super-2 number, since 2×1378873227² = 3802582752274787058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378873277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459049 + ... + 462042.

It is an arithmetic number, because the mean of its divisors is an integer number (230273000).

Almost surely, 2^1378873227 is an apocalyptic number.

1378873227 is a deficient number, since it is larger than the sum of its proper divisors (463310773).

1378873227 is an equidigital number, since it uses as much as digits as its factorization.

1378873227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921593.

The product of its digits is 790272, while the sum is 48.

The square root of 1378873227 is about 37133.1822902374. The cubic root of 1378873227 is about 1113.0331851817.

The spelling of 1378873227 in words is "one billion, three hundred seventy-eight million, eight hundred seventy-three thousand, two hundred twenty-seven".