1066743634 has 32 divisors (see below), whose sum is σ = 1823990400. Its totient is φ = 463161600.

The previous prime is 1066743607. The next prime is 1066743653. The reversal of 1066743634 is 4363476601.

It is a happy number.

It is a super-2 number, since 2×1066743634² = 2275883961359051912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687892 + ... + 689440.

It is an arithmetic number, because the mean of its divisors is an integer number (56999700).

Almost surely, 2^1066743634 is an apocalyptic number.

1066743634 is a deficient number, since it is larger than the sum of its proper divisors (757246766).

1066743634 is a wasteful number, since it uses less digits than its factorization.

1066743634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 1066743634 is about 32661.0415326885. The cubic root of 1066743634 is about 1021.7704845976.

The spelling of 1066743634 in words is "one billion, sixty-six million, seven hundred forty-three thousand, six hundred thirty-four".