1371428578 has 24 divisors (see below), whose sum is σ = 2230373988. Its totient is φ = 632166912.

The previous prime is 1371428563. The next prime is 1371428581. The reversal of 1371428578 is 8758241731.

It can be written as a sum of positive squares in 6 ways, for example, as 136819809 + 1234608769 = 11697^2 + 35137^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328150 + ... + 332302.

Almost surely, 2^1371428578 is an apocalyptic number.

1371428578 is a deficient number, since it is larger than the sum of its proper divisors (858945410).

1371428578 is a wasteful number, since it uses less digits than its factorization.

1371428578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158 (or 5145 counting only the distinct ones).

The product of its digits is 376320, while the sum is 46.

The square root of 1371428578 is about 37032.8040796265. The cubic root of 1371428578 is about 1111.0264503502.

The spelling of 1371428578 in words is "one billion, three hundred seventy-one million, four hundred twenty-eight thousand, five hundred seventy-eight".