1240007680 has 88 divisors (see below), whose sum is σ = 2999559168. Its totient is φ = 491839488.

The previous prime is 1240007669. The next prime is 1240007707. The reversal of 1240007680 is 867000421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649287 + ... + 651193.

Almost surely, 2^1240007680 is an apocalyptic number.

1240007680 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 1240007680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499779584).

1240007680 is an abundant number, since it is smaller than the sum of its proper divisors (1759551488).

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

1240007680 is a wasteful number, since it uses less digits than its factorization.

1240007680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1240007680 is about 35213.7427718213. The cubic root of 1240007680 is about 1074.3392889706.

The spelling of 1240007680 in words is "one billion, two hundred forty million, seven thousand, six hundred eighty".