1149320 has 32 divisors (see below), whose sum is σ = 2635200. Its totient is φ = 451008.

The previous prime is 1149307. The next prime is 1149341. The reversal of 1149320 is 239411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1149292 and 1149301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (82350).

2^1149320 is an apocalyptic number.

1149320 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 1149320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317600).

1149320 is an abundant number, since it is smaller than the sum of its proper divisors (1485880).

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

1149320 is a wasteful number, since it uses less digits than its factorization.

1149320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1149320 is about 1072.0634309592. The cubic root of 1149320 is about 104.7483011327.

Subtracting from 1149320 its reverse (239411), we obtain a palindrome (909909).

The spelling of 1149320 in words is "one million, one hundred forty-nine thousand, three hundred twenty".