1949629656 has 32 divisors (see below), whose sum is σ = 5249003760. Its totient is φ = 599885952.

The previous prime is 1949629651. The next prime is 1949629657. The reversal of 1949629656 is 6569269491.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1949629596 and 1949629605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949629651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124095 + ... + 3124718.

Almost surely, 2^1949629656 is an apocalyptic number.

It is an amenable number.

1949629656 is an abundant number, since it is smaller than the sum of its proper divisors (3299374104).

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

1949629656 is a wasteful number, since it uses less digits than its factorization.

1949629656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248835 (or 6248831 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 57.

The square root of 1949629656 is about 44154.6108124622. The cubic root of 1949629656 is about 1249.2538813475.

The spelling of 1949629656 in words is "one billion, nine hundred forty-nine million, six hundred twenty-nine thousand, six hundred fifty-six".