1172340240 has 80 divisors (see below), whose sum is σ = 3638154048. Its totient is φ = 312288768.

The previous prime is 1172340233. The next prime is 1172340277. The reversal of 1172340240 is 420432711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1172340240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289107 + ... + 293133.

Almost surely, 2^1172340240 is an apocalyptic number.

1172340240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172340240 is an abundant number, since it is smaller than the sum of its proper divisors (2465813808).

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

1172340240 is a wasteful number, since it uses less digits than its factorization.

1172340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256 (or 5250 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1172340240 is about 34239.4544349059. The cubic root of 1172340240 is about 1054.4303326749.

Adding to 1172340240 its reverse (420432711), we get a palindrome (1592772951).

The spelling of 1172340240 in words is "one billion, one hundred seventy-two million, three hundred forty thousand, two hundred forty".