1186278460 has 24 divisors (see below), whose sum is σ = 2558515680. Its totient is φ = 461686464.

The previous prime is 1186278439. The next prime is 1186278463. The reversal of 1186278460 is 648726811.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1186278463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800800 + ... + 802279.

It is an arithmetic number, because the mean of its divisors is an integer number (106604820).

Almost surely, 2^1186278460 is an apocalyptic number.

1186278460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1186278460 is an abundant number, since it is smaller than the sum of its proper divisors (1372237220).

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

1186278460 is a wasteful number, since it uses less digits than its factorization.

1186278460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603125 (or 1603123 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1186278460 is about 34442.3933547017. The cubic root of 1186278460 is about 1058.5926677733.

The spelling of 1186278460 in words is "one billion, one hundred eighty-six million, two hundred seventy-eight thousand, four hundred sixty".