1153976800 has 72 divisors (see below), whose sum is σ = 2829897000. Its totient is φ = 459502080.

The previous prime is 1153976797. The next prime is 1153976801. The reversal of 1153976800 is 86793511.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153976801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180051 + ... + 186349.

It is an arithmetic number, because the mean of its divisors is an integer number (39304125).

Almost surely, 2^1153976800 is an apocalyptic number.

1153976800 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 1153976800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414948500).

1153976800 is an abundant number, since it is smaller than the sum of its proper divisors (1675920200).

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

1153976800 is a wasteful number, since it uses less digits than its factorization.

1153976800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548 (or 6535 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1153976800 is about 33970.2340292203. The cubic root of 1153976800 is about 1048.8958309599.

The spelling of 1153976800 in words is "one billion, one hundred fifty-three million, nine hundred seventy-six thousand, eight hundred".