1328620292 has 12 divisors (see below), whose sum is σ = 2364494160. Its totient is φ = 653050536.

The previous prime is 1328620253. The next prime is 1328620313. The reversal of 1328620292 is 2920268231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2814638 + ... + 2815109.

It is an arithmetic number, because the mean of its divisors is an integer number (197041180).

Almost surely, 2^1328620292 is an apocalyptic number.

It is an amenable number.

1328620292 is a deficient number, since it is larger than the sum of its proper divisors (1035873868).

1328620292 is a wasteful number, since it uses less digits than its factorization.

1328620292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629810 (or 5629808 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1328620292 is about 36450.2440595396. The cubic root of 1328620292 is about 1099.3440419711.

The spelling of 1328620292 in words is "one billion, three hundred twenty-eight million, six hundred twenty thousand, two hundred ninety-two".