1649349268 has 12 divisors (see below), whose sum is σ = 3298698592. Its totient is φ = 706863960.

The previous prime is 1649349227. The next prime is 1649349269. The reversal of 1649349268 is 8629439461.

1649349268 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649349269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29452638 + ... + 29452693.

Almost surely, 2^1649349268 is an apocalyptic number.

It is an amenable number.

1649349268 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.

1649349268 is a wasteful number, since it uses less digits than its factorization.

1649349268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58905342 (or 58905340 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 52.

The square root of 1649349268 is about 40612.1812760654. The cubic root of 1649349268 is about 1181.5103870683.

The spelling of 1649349268 in words is "one billion, six hundred forty-nine million, three hundred forty-nine thousand, two hundred sixty-eight".