1649041368 has 32 divisors (see below), whose sum is σ = 4439727600. Its totient is φ = 507397248.

The previous prime is 1649041367. The next prime is 1649041411. The reversal of 1649041368 is 8631409461.

It is a super-2 number, since 2×1649041368² = 5438674866750622848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649041367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2642383 + ... + 2643006.

Almost surely, 2^1649041368 is an apocalyptic number.

It is an amenable number.

1649041368 is an abundant number, since it is smaller than the sum of its proper divisors (2790686232).

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

1649041368 is a wasteful number, since it uses less digits than its factorization.

1649041368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285411 (or 5285407 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1649041368 is about 40608.3903645540. The cubic root of 1649041368 is about 1181.4368611643.

The spelling of 1649041368 in words is "one billion, six hundred forty-nine million, forty-one thousand, three hundred sixty-eight".