650412 has 72 divisors (see below), whose sum is σ = 1965600. Its totient is φ = 177408.

The previous prime is 650401. The next prime is 650413. The reversal of 650412 is 214056.

It is a happy number.

650412 is a `hidden beast` number, since 650 + 4 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (650413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7264 + ... + 7352.

It is an arithmetic number, because the mean of its divisors is an integer number (27300).

2⁶⁵⁰⁴¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982800).

650412 is an abundant number, since it is smaller than the sum of its proper divisors (1315188).

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

650412 is a wasteful number, since it uses less digits than its factorization.

650412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 650412 is about 806.4812459072. The cubic root of 650412 is about 86.6422087461.

Adding to 650412 its reverse (214056), we get a palindrome (864468).

The spelling of 650412 in words is "six hundred fifty thousand, four hundred twelve".