1190661120 has 616 divisors, whose sum is σ = 4832721360. Its totient is φ = 278691840.

The previous prime is 1190661097. The next prime is 1190661127. The reversal of 1190661120 is 211660911.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1190661127) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 41057266 + ... + 41057294.

Almost surely, 2^1190661120 is an apocalyptic number.

1190661120 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 1190661120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2416360680).

1190661120 is an abundant number, since it is smaller than the sum of its proper divisors (3642060240).

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

1190661120 is an equidigital number, since it uses as much as digits as its factorization.

1190661120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1190661120 is about 34505.9577464530. The cubic root of 1190661120 is about 1059.8947088961.

The spelling of 1190661120 in words is "one billion, one hundred ninety million, six hundred sixty-one thousand, one hundred twenty".