1180240 has 20 divisors (see below), whose sum is σ = 2744244. Its totient is φ = 472064.

The previous prime is 1180237. The next prime is 1180241. The reversal of 1180240 is 420811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 501264 + 678976 = 708^2 + 824^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7297 + ... + 7456.

2^1180240 is an apocalyptic number.

1180240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1180240 is an abundant number, since it is smaller than the sum of its proper divisors (1564004).

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

1180240 is a wasteful number, since it uses less digits than its factorization.

1180240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14766 (or 14760 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1180240 is about 1086.3885124577. The cubic root of 1180240 is about 105.6793442558.

The spelling of 1180240 in words is "one million, one hundred eighty thousand, two hundred forty".