650285140 has 24 divisors (see below), whose sum is σ = 1409651712. Its totient is φ = 251723040.

The previous prime is 650285137. The next prime is 650285147. The reversal of 650285140 is 41582056.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650285147) by changing a digit.

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, 523804 + ... + 525043.

It is an arithmetic number, because the mean of its divisors is an integer number (58735488).

Almost surely, 2^650285140 is an apocalyptic number.

It is an amenable number.

650285140 is an abundant number, since it is smaller than the sum of its proper divisors (759366572).

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

650285140 is a wasteful number, since it uses less digits than its factorization.

650285140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048887 (or 1048885 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 650285140 is about 25500.6890102993. The cubic root of 650285140 is about 866.3657531920.

The spelling of 650285140 in words is "six hundred fifty million, two hundred eighty-five thousand, one hundred forty".