649182 has 16 divisors (see below), whose sum is σ = 1306512. Its totient is φ = 215040.

The previous prime is 649157. The next prime is 649183. The reversal of 649182 is 281946.

It is a super-3 number, since 3×649182³ = 820768467733369704, which contains 333 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649182.

It is not an unprimeable number, because it can be changed into a prime (649183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332 + ... + 1752.

It is an arithmetic number, because the mean of its divisors is an integer number (81657).

2⁶⁴⁹¹⁸² is an apocalyptic number.

649182 is an abundant number, since it is smaller than the sum of its proper divisors (657330).

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

649182 is a wasteful number, since it uses less digits than its factorization.

649182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its digits is 3456, while the sum is 30.

The square root of 649182 is about 805.7183130598. The cubic root of 649182 is about 86.5875576604.

Subtracting from 649182 its reverse (281946), we obtain a square (367236 = 606²).

The spelling of 649182 in words is "six hundred forty-nine thousand, one hundred eighty-two".