649418294 has 32 divisors (see below), whose sum is σ = 1172413440. Its totient is φ = 263764512.

The previous prime is 649418227. The next prime is 649418321. The reversal of 649418294 is 492814946.

It is a Curzon number.

It is a congruent number.

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, 25847 + ... + 44349.

It is an arithmetic number, because the mean of its divisors is an integer number (36637920).

Almost surely, 2^649418294 is an apocalyptic number.

649418294 is a deficient number, since it is larger than the sum of its proper divisors (522995146).

649418294 is a wasteful number, since it uses less digits than its factorization.

649418294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18644.

The product of its digits is 497664, while the sum is 47.

The square root of 649418294 is about 25483.6868211803. The cubic root of 649418294 is about 865.9806197627.

The spelling of 649418294 in words is "six hundred forty-nine million, four hundred eighteen thousand, two hundred ninety-four".