1172270000 has 100 divisors (see below), whose sum is σ = 3096490056. Its totient is φ = 426240000.

The previous prime is 1172269981. The next prime is 1172270009. The reversal of 1172270000 is 722711.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1172270009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 104672 + ... + 115328.

Almost surely, 2^1172270000 is an apocalyptic number.

1172270000 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 1172270000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548245028).

1172270000 is an abundant number, since it is smaller than the sum of its proper divisors (1924220056).

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

1172270000 is a wasteful number, since it uses less digits than its factorization.

1172270000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10696 (or 10675 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 1172270000 is about 34238.4287022638. The cubic root of 1172270000 is about 1054.4092737527.

Adding to 1172270000 its reverse (722711), we get a palindrome (1172992711).

It can be divided in two parts, 1172 and 270000, that added together give a palindrome (271172).

The spelling of 1172270000 in words is "one billion, one hundred seventy-two million, two hundred seventy thousand".