1190223720 has 560 divisors, whose sum is σ = 4959618660. Its totient is φ = 256048128.

The previous prime is 1190223719. The next prime is 1190223731. The reversal of 1190223720 is 273220911.

It can be written as a sum of positive squares in 2 ways, for example, as 1183222404 + 7001316 = 34398^2 + 2646^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 139 ways as a sum of consecutive naturals, for example, 70013152 + ... + 70013168.

Almost surely, 2^1190223720 is an apocalyptic number.

1190223720 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 1190223720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479809330).

1190223720 is an abundant number, since it is smaller than the sum of its proper divisors (3769394940).

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

1190223720 is an frugal number, since it uses more digits than its factorization.

1190223720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1190223720 is about 34499.6191283324. The cubic root of 1190223720 is about 1059.7649057365.

The spelling of 1190223720 in words is "one billion, one hundred ninety million, two hundred twenty-three thousand, seven hundred twenty".