1996247656 has 32 divisors (see below), whose sum is σ = 4033139040. Its totient is φ = 920829888.

The previous prime is 1996247629. The next prime is 1996247657. The reversal of 1996247656 is 6567426991.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1996247597 and 1996247606.

It is not an unprimeable number, because it can be changed into a prime (1996247657) 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, 231535 + ... + 240001.

It is an arithmetic number, because the mean of its divisors is an integer number (126035595).

Almost surely, 2^1996247656 is an apocalyptic number.

It is an amenable number.

1996247656 is an abundant number, since it is smaller than the sum of its proper divisors (2036891384).

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

1996247656 is a wasteful number, since it uses less digits than its factorization.

1996247656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10753 (or 10749 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The square root of 1996247656 is about 44679.3873727024. The cubic root of 1996247656 is about 1259.1326137431.

The spelling of 1996247656 in words is "one billion, nine hundred ninety-six million, two hundred forty-seven thousand, six hundred fifty-six".