1066800426 has 16 divisors (see below), whose sum is σ = 2138822400. Its totient is φ = 354729888.

The previous prime is 1066800419. The next prime is 1066800433. The reversal of 1066800426 is 6240086601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1066800419) and next prime (1066800433).

It is a super-2 number, since 2×1066800426² = 2276126297827562952, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214906 + ... + 219813.

It is an arithmetic number, because the mean of its divisors is an integer number (133676400).

Almost surely, 2^1066800426 is an apocalyptic number.

1066800426 is an abundant number, since it is smaller than the sum of its proper divisors (1072021974).

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

1066800426 is a wasteful number, since it uses less digits than its factorization.

1066800426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435133.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1066800426 is about 32661.9109361348. The cubic root of 1066800426 is about 1021.7886168391.

The spelling of 1066800426 in words is "one billion, sixty-six million, eight hundred thousand, four hundred twenty-six".