650749290 has 32 divisors (see below), whose sum is σ = 1653670080. Its totient is φ = 163325184.

The previous prime is 650749279. The next prime is 650749313. The reversal of 650749290 is 92947056.

650749290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637480 + ... + 638499.

It is an arithmetic number, because the mean of its divisors is an integer number (51677190).

Almost surely, 2^650749290 is an apocalyptic number.

650749290 is an abundant number, since it is smaller than the sum of its proper divisors (1002920790).

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

650749290 is a wasteful number, since it uses less digits than its factorization.

650749290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276006.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 650749290 is about 25509.7881214251. The cubic root of 650749290 is about 866.5718310102.

The spelling of 650749290 in words is "six hundred fifty million, seven hundred forty-nine thousand, two hundred ninety".