1240430660 has 24 divisors (see below), whose sum is σ = 2977033920. Its totient is φ = 425290464.

The previous prime is 1240430657. The next prime is 1240430671. The reversal of 1240430660 is 660340421.

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, 4429970 + ... + 4430249.

It is an arithmetic number, because the mean of its divisors is an integer number (124043080).

Almost surely, 2^1240430660 is an apocalyptic number.

1240430660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240430660 is an abundant number, since it is smaller than the sum of its proper divisors (1736603260).

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

1240430660 is a wasteful number, since it uses less digits than its factorization.

1240430660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8860235 (or 8860233 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1240430660 is about 35219.7481535573. The cubic root of 1240430660 is about 1074.4614313250.

The spelling of 1240430660 in words is "one billion, two hundred forty million, four hundred thirty thousand, six hundred sixty".