1066948138 has 8 divisors (see below), whose sum is σ = 1606328640. Its totient is φ = 531505260.

The previous prime is 1066948123. The next prime is 1066948189. The reversal of 1066948138 is 8318496601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1066948138² = 2276756658363334088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983728 + ... + 984811.

It is an arithmetic number, because the mean of its divisors is an integer number (200791080).

Almost surely, 2^1066948138 is an apocalyptic number.

1066948138 is a deficient number, since it is larger than the sum of its proper divisors (539380502).

1066948138 is a wasteful number, since it uses less digits than its factorization.

1066948138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968812.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1066948138 is about 32664.1720850231. The cubic root of 1066948138 is about 1021.8357745114.

The spelling of 1066948138 in words is "one billion, sixty-six million, nine hundred forty-eight thousand, one hundred thirty-eight".