1926806656 has 48 divisors (see below), whose sum is σ = 4068681570. Its totient is φ = 905768960.

The previous prime is 1926806653. The next prime is 1926806671. The reversal of 1926806656 is 6566086291.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1897473600 + 29333056 = 43560^2 + 5416^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1926806653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2047146 + ... + 2048086.

Almost surely, 2^1926806656 is an apocalyptic number.

1926806656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1926806656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2034340785).

1926806656 is an abundant number, since it is smaller than the sum of its proper divisors (2141874914).

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

1926806656 is an frugal number, since it uses more digits than its factorization.

1926806656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 1926806656 is about 43895.4058643954. The cubic root of 1926806656 is about 1244.3600106357.

The spelling of 1926806656 in words is "one billion, nine hundred twenty-six million, eight hundred six thousand, six hundred fifty-six".