1138560478 has 8 divisors (see below), whose sum is σ = 1863099000. Its totient is φ = 517527480.

The previous prime is 1138560463. The next prime is 1138560581. The reversal of 1138560478 is 8740658311.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25876353 + ... + 25876396.

It is an arithmetic number, because the mean of its divisors is an integer number (232887375).

Almost surely, 2^1138560478 is an apocalyptic number.

1138560478 is a deficient number, since it is larger than the sum of its proper divisors (724538522).

1138560478 is a wasteful number, since it uses less digits than its factorization.

1138560478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51752762.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 1138560478 is about 33742.5618173843. The cubic root of 1138560478 is about 1044.2040375466.

The spelling of 1138560478 in words is "one billion, one hundred thirty-eight million, five hundred sixty thousand, four hundred seventy-eight".