650945700 has 144 divisors (see below), whose sum is σ = 2202984000. Its totient is φ = 164436480.

The previous prime is 650945693. The next prime is 650945731. The reversal of 650945700 is 7549056.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44956 + ... + 57644.

It is an arithmetic number, because the mean of its divisors is an integer number (15298500).

Almost surely, 2^650945700 is an apocalyptic number.

650945700 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 650945700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101492000).

650945700 is an abundant number, since it is smaller than the sum of its proper divisors (1552038300).

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

650945700 is a wasteful number, since it uses less digits than its factorization.

650945700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731 (or 12718 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 650945700 is about 25513.6375297604. The cubic root of 650945700 is about 866.6590055207.

The spelling of 650945700 in words is "six hundred fifty million, nine hundred forty-five thousand, seven hundred".