1662027628 has 6 divisors (see below), whose sum is σ = 2908548356. Its totient is φ = 831013812.

The previous prime is 1662027599. The next prime is 1662027629. The reversal of 1662027628 is 8267202661.

It is not an unprimeable number, because it can be changed into a prime (1662027629) by changing a digit.

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 as a sum of consecutive naturals, namely, 207753450 + ... + 207753457.

Almost surely, 2^1662027628 is an apocalyptic number.

It is an amenable number.

1662027628 is a deficient number, since it is larger than the sum of its proper divisors (1246520728).

1662027628 is a wasteful number, since it uses less digits than its factorization.

1662027628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415506911 (or 415506909 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1662027628 is about 40767.9730671026. The cubic root of 1662027628 is about 1184.5300415872.

The spelling of 1662027628 in words is "one billion, six hundred sixty-two million, twenty-seven thousand, six hundred twenty-eight".