1330840628 has 48 divisors (see below), whose sum is σ = 2622385920. Its totient is φ = 586358784.

The previous prime is 1330840613. The next prime is 1330840703. The reversal of 1330840628 is 8260480331.

It is a happy number.

It is a super-2 number, since 2×1330840628² = 3542273554270868768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919001 + ... + 920447.

It is an arithmetic number, because the mean of its divisors is an integer number (54633040).

Almost surely, 2^1330840628 is an apocalyptic number.

It is an amenable number.

1330840628 is a deficient number, since it is larger than the sum of its proper divisors (1291545292).

1330840628 is a wasteful number, since it uses less digits than its factorization.

1330840628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 2254 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1330840628 is about 36480.6884255218. The cubic root of 1330840628 is about 1099.9560941153.

The spelling of 1330840628 in words is "one billion, three hundred thirty million, eight hundred forty thousand, six hundred twenty-eight".