650023920 has 320 divisors, whose sum is σ = 2756490240. Its totient is φ = 137106432.

The previous prime is 650023919. The next prime is 650023931. The reversal of 650023920 is 29320056.

650023920 is a `hidden beast` number, since 650 + 0 + 2 + 3 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194907 + ... + 198213.

It is an arithmetic number, because the mean of its divisors is an integer number (8614032).

Almost surely, 2^650023920 is an apocalyptic number.

650023920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650023920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378245120).

650023920 is an abundant number, since it is smaller than the sum of its proper divisors (2106466320).

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

650023920 is a wasteful number, since it uses less digits than its factorization.

650023920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349 (or 3337 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 650023920 is about 25495.5666734434. The cubic root of 650023920 is about 866.2497310769.

Adding to 650023920 its reverse (29320056), we get a palindrome (679343976).

The spelling of 650023920 in words is "six hundred fifty million, twenty-three thousand, nine hundred twenty".