649900286 has 8 divisors (see below), whose sum is σ = 1114114800. Its totient is φ = 278528688.

The previous prime is 649900267. The next prime is 649900289. The reversal of 649900286 is 682009946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649900289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23210711 + ... + 23210738.

It is an arithmetic number, because the mean of its divisors is an integer number (139264350).

Almost surely, 2^649900286 is an apocalyptic number.

649900286 is a deficient number, since it is larger than the sum of its proper divisors (464214514).

649900286 is a wasteful number, since it uses less digits than its factorization.

649900286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46421458.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 649900286 is about 25493.1419405298. The cubic root of 649900286 is about 866.1948076058.

The spelling of 649900286 in words is "six hundred forty-nine million, nine hundred thousand, two hundred eighty-six".