1628268268 has 24 divisors (see below), whose sum is σ = 3139298064. Its totient is φ = 732792000.

The previous prime is 1628268259. The next prime is 1628268277. The reversal of 1628268268 is 8628628261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1628268259) and next prime (1628268277).

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, 178755 + ... + 187642.

It is an arithmetic number, because the mean of its divisors is an integer number (130804086).

Almost surely, 2^1628268268 is an apocalyptic number.

It is an amenable number.

1628268268 is a deficient number, since it is larger than the sum of its proper divisors (1511029796).

1628268268 is a wasteful number, since it uses less digits than its factorization.

1628268268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366513 (or 366511 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 1628268268 is about 40351.8062544913. The cubic root of 1628268268 is about 1176.4549998270.

The spelling of 1628268268 in words is "one billion, six hundred twenty-eight million, two hundred sixty-eight thousand, two hundred sixty-eight".