1240865760 has 48 divisors (see below), whose sum is σ = 3908728656. Its totient is φ = 330897408.

The previous prime is 1240865741. The next prime is 1240865761. The reversal of 1240865760 is 675680421.

1240865760 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240865761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292089 + ... + 1293048.

It is an arithmetic number, because the mean of its divisors is an integer number (81431847).

Almost surely, 2^1240865760 is an apocalyptic number.

1240865760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240865760 is an abundant number, since it is smaller than the sum of its proper divisors (2667862896).

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

1240865760 is a wasteful number, since it uses less digits than its factorization.

1240865760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585155 (or 2585147 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1240865760 is about 35225.9245442898. The cubic root of 1240865760 is about 1074.5870445586.

The spelling of 1240865760 in words is "one billion, two hundred forty million, eight hundred sixty-five thousand, seven hundred sixty".