649090734 has 8 divisors (see below), whose sum is σ = 1298181480. Its totient is φ = 216363576.

The previous prime is 649090693. The next prime is 649090759. The reversal of 649090734 is 437090946.

649090734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

649090734 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54090889 + ... + 54090900.

It is an arithmetic number, because the mean of its divisors is an integer number (162272685).

Almost surely, 2^649090734 is an apocalyptic number.

649090734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

649090734 is a wasteful number, since it uses less digits than its factorization.

649090734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108181794.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 649090734 is about 25477.2591539985. The cubic root of 649090734 is about 865.8349979964.

The spelling of 649090734 in words is "six hundred forty-nine million, ninety thousand, seven hundred thirty-four".