649858226 has 8 divisors (see below), whose sum is σ = 997456944. Its totient is φ = 317372580.

The previous prime is 649858219. The next prime is 649858229. The reversal of 649858226 is 622858946.

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

It is a super-3 number, since 3×649858226³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (649858229) 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, 3778160 + ... + 3778331.

It is an arithmetic number, because the mean of its divisors is an integer number (124682118).

Almost surely, 2^649858226 is an apocalyptic number.

649858226 is a deficient number, since it is larger than the sum of its proper divisors (347598718).

649858226 is a wasteful number, since it uses less digits than its factorization.

649858226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556536.

The product of its digits is 1658880, while the sum is 50.

The square root of 649858226 is about 25492.3169994412. The cubic root of 649858226 is about 866.1761211805.

The spelling of 649858226 in words is "six hundred forty-nine million, eight hundred fifty-eight thousand, two hundred twenty-six".