1164240 has 240 divisors, whose sum is σ = 5088960. Its totient is φ = 241920.

The previous prime is 1164221. The next prime is 1164253. The reversal of 1164240 is 424611.

1164240 = 49³ + 50³ + ... + 56³.

It is a Cunningham number, because it is equal to 1079²-1.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105835 + ... + 105845.

It is an arithmetic number, because the mean of its divisors is an integer number (21204).

2^1164240 is an apocalyptic number.

1164240 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 1164240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2544480).

1164240 is an abundant number, since it is smaller than the sum of its proper divisors (3924720).

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

1164240 is a wasteful number, since it uses less digits than its factorization.

1164240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1164240 is about 1078.9995366079. Note that the first 3 decimals coincide. The cubic root of 1164240 is about 105.1996202524.

Adding to 1164240 its reverse (424611), we get a palindrome (1588851).

It can be divided in two parts, 116 and 4240, that added together give a square (4356 = 66²).

The spelling of 1164240 in words is "one million, one hundred sixty-four thousand, two hundred forty".