1095198720 has 384 divisors, whose sum is σ = 4377784320. Its totient is φ = 227082240.

The previous prime is 1095198679. The next prime is 1095198749. The reversal of 1095198720 is 278915901.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2365209 + ... + 2365671.

It is an arithmetic number, because the mean of its divisors is an integer number (11400480).

Almost surely, 2^1095198720 is an apocalyptic number.

1095198720 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 1095198720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188892160).

1095198720 is an abundant number, since it is smaller than the sum of its proper divisors (3282585600).

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

1095198720 is a wasteful number, since it uses less digits than its factorization.

1095198720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 1095198720 is about 33093.7867280249. The cubic root of 1095198720 is about 1030.7760262303.

The spelling of 1095198720 in words is "one billion, ninety-five million, one hundred ninety-eight thousand, seven hundred twenty".