1104220720 has 160 divisors (see below), whose sum is σ = 2890529280. Its totient is φ = 389836800.

The previous prime is 1104220717. The next prime is 1104220723. The reversal of 1104220720 is 270224011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1104220717) and next prime (1104220723).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1104220723) 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, 3901699 + ... + 3901981.

It is an arithmetic number, because the mean of its divisors is an integer number (18065808).

Almost surely, 2^1104220720 is an apocalyptic number.

1104220720 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 1104220720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1445264640).

1104220720 is an abundant number, since it is smaller than the sum of its proper divisors (1786308560).

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

1104220720 is a wasteful number, since it uses less digits than its factorization.

1104220720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1104220720 is about 33229.8167313634. The cubic root of 1104220720 is about 1033.5987229086.

Adding to 1104220720 its reverse (270224011), we get a palindrome (1374444731).

The spelling of 1104220720 in words is "one billion, one hundred four million, two hundred twenty thousand, seven hundred twenty".