1066268456 has 24 divisors (see below), whose sum is σ = 2197528410. Its totient is φ = 484667040.

The previous prime is 1066268449. The next prime is 1066268459. The reversal of 1066268456 is 6548626601.

It can be written as a sum of positive squares in only one way, i.e., 752624356 + 313644100 = 27434^2 + 17710^2 .

It is a super-2 number, since 2×1066268456² = 2273856840521247872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (1066268459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 549791 + ... + 551726.

Almost surely, 2^1066268456 is an apocalyptic number.

It is an amenable number.

1066268456 is an abundant number, since it is smaller than the sum of its proper divisors (1131259954).

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

1066268456 is a wasteful number, since it uses less digits than its factorization.

1066268456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101545 (or 1101530 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 1066268456 is about 32653.7663371318. The cubic root of 1066268456 is about 1021.6187471200.

The spelling of 1066268456 in words is "one billion, sixty-six million, two hundred sixty-eight thousand, four hundred fifty-six".