1912286656 has 56 divisors (see below), whose sum is σ = 4348337760. Its totient is φ = 817370112.

The previous prime is 1912286609. The next prime is 1912286657. The reversal of 1912286656 is 6566822191.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912286657) 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, 168786 + ... + 179758.

Almost surely, 2^1912286656 is an apocalyptic number.

1912286656 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 1912286656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2174168880).

1912286656 is an abundant number, since it is smaller than the sum of its proper divisors (2436051104).

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

1912286656 is a wasteful number, since it uses less digits than its factorization.

1912286656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11381 (or 11371 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 1912286656 is about 43729.6999303677. The cubic root of 1912286656 is about 1241.2263829386.

The spelling of 1912286656 in words is "one billion, nine hundred twelve million, two hundred eighty-six thousand, six hundred fifty-six".