650408 has 32 divisors (see below), whose sum is σ = 1404000. Its totient is φ = 279360.

The previous prime is 650401. The next prime is 650413. The reversal of 650408 is 804056.

650408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (650401) 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, 1478 + ... + 1866.

It is an arithmetic number, because the mean of its divisors is an integer number (43875).

2⁶⁵⁰⁴⁰⁸ 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 650408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702000).

650408 is an abundant number, since it is smaller than the sum of its proper divisors (753592).

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

650408 is a wasteful number, since it uses less digits than its factorization.

650408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 650408 is about 806.4787659945. The cubic root of 650408 is about 86.6420311307.

The spelling of 650408 in words is "six hundred fifty thousand, four hundred eight".