650157220 has 24 divisors (see below), whose sum is σ = 1366021944. Its totient is φ = 259931136.

The previous prime is 650157191. The next prime is 650157223. The reversal of 650157220 is 22751056.

It can be written as a sum of positive squares in 4 ways, for example, as 190826596 + 459330624 = 13814^2 + 21432^2 .

It is not an unprimeable number, because it can be changed into a prime (650157223) 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, 38772 + ... + 52948.

It is an arithmetic number, because the mean of its divisors is an integer number (56917581).

Almost surely, 2^650157220 is an apocalyptic number.

It is an amenable number.

650157220 is an abundant number, since it is smaller than the sum of its proper divisors (715864724).

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

650157220 is a wasteful number, since it uses less digits than its factorization.

650157220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16479 (or 16477 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 650157220 is about 25498.1807194160. The cubic root of 650157220 is about 866.3089407938.

The spelling of 650157220 in words is "six hundred fifty million, one hundred fifty-seven thousand, two hundred twenty".