1382227478 has 4 divisors (see below), whose sum is σ = 2073341220. Its totient is φ = 691113738.

The previous prime is 1382227471. The next prime is 1382227489. The reversal of 1382227478 is 8747222831.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382227471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345556868 + ... + 345556871.

It is an arithmetic number, because the mean of its divisors is an integer number (518335305).

Almost surely, 2^1382227478 is an apocalyptic number.

1382227478 is a deficient number, since it is larger than the sum of its proper divisors (691113742).

1382227478 is an equidigital number, since it uses as much as digits as its factorization.

1382227478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691113741.

The product of its digits is 301056, while the sum is 44.

The square root of 1382227478 is about 37178.3199996987. The cubic root of 1382227478 is about 1113.9349769245.

The spelling of 1382227478 in words is "one billion, three hundred eighty-two million, two hundred twenty-seven thousand, four hundred seventy-eight".