649913110 has 32 divisors (see below), whose sum is σ = 1458508032. Its totient is φ = 202570080.

The previous prime is 649913081. The next prime is 649913119. The reversal of 649913110 is 11319946.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649913119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421252 + ... + 422791.

It is an arithmetic number, because the mean of its divisors is an integer number (45578376).

Almost surely, 2^649913110 is an apocalyptic number.

649913110 is an abundant number, since it is smaller than the sum of its proper divisors (808594922).

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

649913110 is a wasteful number, since it uses less digits than its factorization.

649913110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844068.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 649913110 is about 25493.3934579138. The cubic root of 649913110 is about 866.2005048948.

The spelling of 649913110 in words is "six hundred forty-nine million, nine hundred thirteen thousand, one hundred ten".