1662000039 has 20 divisors (see below), whose sum is σ = 2837419024. Its totient is φ = 949713984.

The previous prime is 1662000031. The next prime is 1662000049. The reversal of 1662000039 is 9300002661.

It is a happy number.

1662000039 is a `hidden beast` number, since 1 + 6 + 620 + 0 + 0 + 0 + 39 = 666.

It is not a de Polignac number, because 1662000039 - 2³ = 1662000031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1661999976 and 1662000021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662000031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1465042 + ... + 1466175.

Almost surely, 2^1662000039 is an apocalyptic number.

1662000039 is a deficient number, since it is larger than the sum of its proper divisors (1175418985).

1662000039 is an equidigital number, since it uses as much as digits as its factorization.

1662000039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931236 (or 2931227 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 1662000039 is about 40767.6346995996. The cubic root of 1662000039 is about 1184.5234873078.

The spelling of 1662000039 in words is "one billion, six hundred sixty-two million, thirty-nine", and thus it is an aban number.