1330743840 has 48 divisors (see below), whose sum is σ = 4191844608. Its totient is φ = 354864896.

The previous prime is 1330743839. The next prime is 1330743857. The reversal of 1330743840 is 483470331.

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

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, 1385712 + ... + 1386671.

It is an arithmetic number, because the mean of its divisors is an integer number (87330096).

Almost surely, 2^1330743840 is an apocalyptic number.

1330743840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330743840 is an abundant number, since it is smaller than the sum of its proper divisors (2861100768).

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

1330743840 is a wasteful number, since it uses less digits than its factorization.

1330743840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772401 (or 2772393 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 1330743840 is about 36479.3618365234. The cubic root of 1330743840 is about 1099.9294279793.

The spelling of 1330743840 in words is "one billion, three hundred thirty million, seven hundred forty-three thousand, eight hundred forty".