1189320 has 128 divisors (see below), whose sum is σ = 4199040. Its totient is φ = 266240.

The previous prime is 1189313. The next prime is 1189327. The reversal of 1189320 is 239811.

It is an interprime number because it is at equal distance from previous prime (1189313) and next prime (1189327).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189327) 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, 22414 + ... + 22466.

It is an arithmetic number, because the mean of its divisors is an integer number (32805).

2^1189320 is an apocalyptic number.

1189320 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 1189320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099520).

1189320 is an abundant number, since it is smaller than the sum of its proper divisors (3009720).

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

1189320 is a wasteful number, since it uses less digits than its factorization.

1189320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1189320 is about 1090.5594894365. The cubic root of 1189320 is about 105.9496616332.

The spelling of 1189320 in words is "one million, one hundred eighty-nine thousand, three hundred twenty".