650267920 has 40 divisors (see below), whose sum is σ = 1512967896. Its totient is φ = 259918848.

The previous prime is 650267861. The next prime is 650267939. The reversal of 650267920 is 29762056.

It can be written as a sum of positive squares in 4 ways, for example, as 102333456 + 547934464 = 10116^2 + 23408^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×650267920² = 845696735562252800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 650267920.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 175204 + ... + 178876.

Almost surely, 2^650267920 is an apocalyptic number.

It is an amenable number.

650267920 is an abundant number, since it is smaller than the sum of its proper divisors (862699976).

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

650267920 is a wasteful number, since it uses less digits than its factorization.

650267920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899 (or 5893 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 650267920 is about 25500.3513701282. The cubic root of 650267920 is about 866.3581058032.

The spelling of 650267920 in words is "six hundred fifty million, two hundred sixty-seven thousand, nine hundred twenty".