1197842000 has 80 divisors (see below), whose sum is σ = 2958239232. Its totient is φ = 468905600.

The previous prime is 1197841993. The next prime is 1197842021. The reversal of 1197842000 is 2487911.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87629 + ... + 100371.

Almost surely, 2^1197842000 is an apocalyptic number.

1197842000 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 1197842000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479119616).

1197842000 is an abundant number, since it is smaller than the sum of its proper divisors (1760397232).

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

1197842000 is a wasteful number, since it uses less digits than its factorization.

1197842000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813 (or 12797 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 1197842000 is about 34609.8540881062. The cubic root of 1197842000 is about 1062.0211821760.

The spelling of 1197842000 in words is "one billion, one hundred ninety-seven million, eight hundred forty-two thousand".