1194243680 has 192 divisors, whose sum is σ = 3367526400. Its totient is φ = 399877632.

The previous prime is 1194243653. The next prime is 1194243683. The reversal of 1194243680 is 863424911.

It is a hoax number, since the sum of its digits (38) 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 (1194243683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2579129 + ... + 2579591.

It is an arithmetic number, because the mean of its divisors is an integer number (17539200).

Almost surely, 2^1194243680 is an apocalyptic number.

1194243680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1194243680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1683763200).

1194243680 is an abundant number, since it is smaller than the sum of its proper divisors (2173282720).

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

1194243680 is an equidigital number, since it uses as much as digits as its factorization.

1194243680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1194243680 is about 34557.8309504517. The cubic root of 1194243680 is about 1060.9566775504.

The spelling of 1194243680 in words is "one billion, one hundred ninety-four million, two hundred forty-three thousand, six hundred eighty".