1240247120 has 80 divisors (see below), whose sum is σ = 3349630848. Its totient is φ = 418245120.

The previous prime is 1240247119. The next prime is 1240247137. The reversal of 1240247120 is 217420421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16007 + ... + 52313.

Almost surely, 2^1240247120 is an apocalyptic number.

1240247120 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 1240247120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674815424).

1240247120 is an abundant number, since it is smaller than the sum of its proper divisors (2109383728).

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

1240247120 is a wasteful number, since it uses less digits than its factorization.

1240247120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36388 (or 36382 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 1240247120 is about 35217.1424167265. The cubic root of 1240247120 is about 1074.4084345756.

Adding to 1240247120 its reverse (217420421), we get a palindrome (1457667541).

The spelling of 1240247120 in words is "one billion, two hundred forty million, two hundred forty-seven thousand, one hundred twenty".