1066938958 has 16 divisors (see below), whose sum is σ = 1685777040. Its totient is φ = 505051200.

The previous prime is 1066938947. The next prime is 1066938959. The reversal of 1066938958 is 8598396601.

It is a happy number.

It is a super-2 number, since 2×1066938958² = 2276717480196251528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066938899 and 1066938908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066938959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52938 + ... + 70258.

It is an arithmetic number, because the mean of its divisors is an integer number (105361065).

Almost surely, 2^1066938958 is an apocalyptic number.

1066938958 is a deficient number, since it is larger than the sum of its proper divisors (618838082).

1066938958 is a wasteful number, since it uses less digits than its factorization.

1066938958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18963.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 1066938958 is about 32664.0315637859. The cubic root of 1066938958 is about 1021.8328438850.

The spelling of 1066938958 in words is "one billion, sixty-six million, nine hundred thirty-eight thousand, nine hundred fifty-eight".