1378228714 has 8 divisors (see below), whose sum is σ = 2076371460. Its totient is φ = 686104896.

The previous prime is 1378228711. The next prime is 1378228717. The reversal of 1378228714 is 4178228731.

It is an interprime number because it is at equal distance from previous prime (1378228711) and next prime (1378228717).

It can be written as a sum of positive squares in 2 ways, for example, as 942797025 + 435431689 = 30705^2 + 20867^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1378228711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504159 + ... + 1505074.

Almost surely, 2^1378228714 is an apocalyptic number.

1378228714 is a deficient number, since it is larger than the sum of its proper divisors (698142746).

1378228714 is a wasteful number, since it uses less digits than its factorization.

1378228714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009464.

The product of its digits is 150528, while the sum is 43.

The square root of 1378228714 is about 37124.5028788265. The cubic root of 1378228714 is about 1112.8597401440.

The spelling of 1378228714 in words is "one billion, three hundred seventy-eight million, two hundred twenty-eight thousand, seven hundred fourteen".