1066244140 has 24 divisors (see below), whose sum is σ = 2411352720. Its totient is φ = 393690048.

The previous prime is 1066244129. The next prime is 1066244159. The reversal of 1066244140 is 414426601.

It is a super-2 number, since 2×1066244140² = 2273753132168679200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066244099 and 1066244108.

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, 2050210 + ... + 2050729.

It is an arithmetic number, because the mean of its divisors is an integer number (100473030).

Almost surely, 2^1066244140 is an apocalyptic number.

1066244140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066244140 is an abundant number, since it is smaller than the sum of its proper divisors (1345108580).

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

1066244140 is a wasteful number, since it uses less digits than its factorization.

1066244140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100961 (or 4100959 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1066244140 is about 32653.3940042992. The cubic root of 1066244140 is about 1021.6109811364.

The spelling of 1066244140 in words is "one billion, sixty-six million, two hundred forty-four thousand, one hundred forty".