1173240 has 48 divisors (see below), whose sum is σ = 3814200. Its totient is φ = 312768.

The previous prime is 1173239. The next prime is 1173259. The reversal of 1173240 is 423711.

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

It is a plaindrome in base 14.

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 11 ways as a sum of consecutive naturals, for example, 1270 + ... + 1989.

2^1173240 is an apocalyptic number.

1173240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1173240 is an abundant number, since it is smaller than the sum of its proper divisors (2640960).

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

1173240 is a wasteful number, since it uses less digits than its factorization.

1173240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1173240 is about 1083.1620377395. The cubic root of 1173240 is about 105.4700018781.

Adding to 1173240 its reverse (423711), we get a palindrome (1596951).

The spelling of 1173240 in words is "one million, one hundred seventy-three thousand, two hundred forty".