1682664018 has 40 divisors (see below), whose sum is σ = 3926016048. Its totient is φ = 480757032.

The previous prime is 1682664017. The next prime is 1682664019. The reversal of 1682664018 is 8104662861.

It is an interprime number because it is at equal distance from previous prime (1682664017) and next prime (1682664019).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1682664017) 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, 43996 + ... + 72807.

Almost surely, 2^1682664018 is an apocalyptic number.

1682664018 is an abundant number, since it is smaller than the sum of its proper divisors (2243352030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1682664018 is an equidigital number, since it uses as much as digits as its factorization.

1682664018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116836 (or 116815 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1682664018 is about 41020.2878829488. The cubic root of 1682664018 is about 1189.4124204179.

The spelling of 1682664018 in words is "one billion, six hundred eighty-two million, six hundred sixty-four thousand, eighteen".