1662004346 has 8 divisors (see below), whose sum is σ = 2494093140. Its totient is φ = 830639968.

The previous prime is 1662004321. The next prime is 1662004361. The reversal of 1662004346 is 6434002661.

It can be written as a sum of positive squares in 2 ways, for example, as 1548816025 + 113188321 = 39355^2 + 10639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1662004346² = 5524516892245775432, which contains 22 as substring.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 175331 + ... + 184566.

Almost surely, 2^1662004346 is an apocalyptic number.

1662004346 is a deficient number, since it is larger than the sum of its proper divisors (832088794).

1662004346 is a wasteful number, since it uses less digits than its factorization.

1662004346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362208.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1662004346 is about 40767.6875233315. The cubic root of 1662004346 is about 1184.5245105204.

The spelling of 1662004346 in words is "one billion, six hundred sixty-two million, four thousand, three hundred forty-six".