1649724056 has 16 divisors (see below), whose sum is σ = 3102152040. Its totient is φ = 822483520.

The previous prime is 1649724053. The next prime is 1649724061. The reversal of 1649724056 is 6504279461.

It is a super-2 number, since 2×1649724056² = 5443178921890182272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1649723998 and 1649724016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649724053) 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, 294365 + ... + 299916.

Almost surely, 2^1649724056 is an apocalyptic number.

It is an amenable number.

1649724056 is a deficient number, since it is larger than the sum of its proper divisors (1452427984).

1649724056 is a wasteful number, since it uses less digits than its factorization.

1649724056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594634 (or 594630 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 1649724056 is about 40616.7952453169. The cubic root of 1649724056 is about 1181.5998733457.

The spelling of 1649724056 in words is "one billion, six hundred forty-nine million, seven hundred twenty-four thousand, fifty-six".