650149902 has 56 divisors (see below), whose sum is σ = 1475943480. Its totient is φ = 214675920.

The previous prime is 650149891. The next prime is 650149931. The reversal of 650149902 is 209941056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 156877 + ... + 160967.

Almost surely, 2^650149902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650149902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737971740).

650149902 is an abundant number, since it is smaller than the sum of its proper divisors (825793578).

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

650149902 is a wasteful number, since it uses less digits than its factorization.

650149902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220 (or 4205 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 650149902 is about 25498.0372185782. The cubic root of 650149902 is about 866.3056904658.

The spelling of 650149902 in words is "six hundred fifty million, one hundred forty-nine thousand, nine hundred two".