1138560486 has 32 divisors (see below), whose sum is σ = 2645092608. Its totient is φ = 319969440.

The previous prime is 1138560463. The next prime is 1138560581. The reversal of 1138560486 is 6840658311.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 219640 + ... + 224763.

It is an arithmetic number, because the mean of its divisors is an integer number (82659144).

Almost surely, 2^1138560486 is an apocalyptic number.

1138560486 is an abundant number, since it is smaller than the sum of its proper divisors (1506532122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1138560486 is a wasteful number, since it uses less digits than its factorization.

1138560486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444476.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1138560486 is about 33742.5619359289. The cubic root of 1138560486 is about 1044.2040399923.

The spelling of 1138560486 in words is "one billion, one hundred thirty-eight million, five hundred sixty thousand, four hundred eighty-six".