1685224082 has 4 divisors (see below), whose sum is σ = 2527836126. Its totient is φ = 842612040.

The previous prime is 1685224081. The next prime is 1685224103. The reversal of 1685224082 is 2804225861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1203465481 + 481758601 = 34691^2 + 21949^2 .

It is not an unprimeable number, because it can be changed into a prime (1685224081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421306019 + ... + 421306022.

Almost surely, 2^1685224082 is an apocalyptic number.

1685224082 is a deficient number, since it is larger than the sum of its proper divisors (842612044).

1685224082 is an equidigital number, since it uses as much as digits as its factorization.

1685224082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842612043.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 1685224082 is about 41051.4808746286. The cubic root of 1685224082 is about 1190.0153193424.

The spelling of 1685224082 in words is "one billion, six hundred eighty-five million, two hundred twenty-four thousand, eighty-two".