1194638860 has 24 divisors (see below), whose sum is σ = 2617818336. Its totient is φ = 457079040.

The previous prime is 1194638821. The next prime is 1194638867. The reversal of 1194638860 is 688364911.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 1194638860.

It is not an unprimeable number, because it can be changed into a prime (1194638867) 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, 1298061 + ... + 1298980.

It is an arithmetic number, because the mean of its divisors is an integer number (109075764).

Almost surely, 2^1194638860 is an apocalyptic number.

1194638860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1194638860 is an abundant number, since it is smaller than the sum of its proper divisors (1423179476).

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

1194638860 is a wasteful number, since it uses less digits than its factorization.

1194638860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597073 (or 2597071 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1194638860 is about 34563.5481396225. The cubic root of 1194638860 is about 1061.0736895777.

The spelling of 1194638860 in words is "one billion, one hundred ninety-four million, six hundred thirty-eight thousand, eight hundred sixty".