650143998 has 48 divisors (see below), whose sum is σ = 1611324000. Its totient is φ = 185588928.

The previous prime is 650143993. The next prime is 650143999. The reversal of 650143998 is 899341056.

It is a happy number.

650143998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650143993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235128 + ... + 237876.

It is an arithmetic number, because the mean of its divisors is an integer number (33569250).

Almost surely, 2^650143998 is an apocalyptic number.

650143998 is an abundant number, since it is smaller than the sum of its proper divisors (961180002).

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

650143998 is a wasteful number, since it uses less digits than its factorization.

650143998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641 (or 4638 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 650143998 is about 25497.9214446982. The cubic root of 650143998 is about 866.3030681556.

The spelling of 650143998 in words is "six hundred fifty million, one hundred forty-three thousand, nine hundred ninety-eight".